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Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries

B&H # WAAAC4H MFR # AA-C4H
Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries

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Product Highlights

  • Charges 2 or 4 AA or AAA Batteries
  • Charging Time: Approx. 100-280 Min
  • Delta-V Microprocessor for Full Charging
  • Safety Guard Timer Prevents Overcharging
  • 2 Charging Indicator Lights
  • 100-240VAC Input
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You Pay: $9.50

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The 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries from Watson charges 2 or 4 AA or AAA batteries (not included). It is compatible with both NiMH and NiCd batteries. Charging time varies from 100-280 min, depending upon battery quantity, size, and capacity.

The charger's intelligent Negative Delta-V microprocessor doles out the full charge to each battery, while Zero Slope Detection prevents overcharging. The Safety Guard Timer automatically shuts off after 6 hr in cases where batteries are taking far longer than normal to charge, in order to prevent damage from excessive current.

The charger has two charging level indicator lights to keep you apprised of battery status. Switching 100-240VAC input power enables use all over the world. The charger's compact outlet prongs can fold in, making the unit more compact for storage.

Will charge either 2 or 4 AA or AAA batteries (sold separately)
Works with batteries that have Nickel-Metal Hydride (NiMH) or Nickel-Cadmium (NiCd) chemistry
Charging time varies based upon battery quantity, size, and capacity. Charging 2 AAA batteries will take about 100 min, while 4 AAA's will require about 200 min. Charging time for 2 AA batteries with a capacity of about 1800mAh will be roughly 110 min, while 4 AA batteries at that capacity will require about 220 min. For higher-capacity AA's in the 2400-2500mAh range, 2 batteries will charge in approximately 140 min, and 4 batteries will take about 280 min
An intelligent Negative Delta-V microprocessor ensures that each battery is charged to its full capacity, while the Zero Slope Detection feature prevents overcharging
Safety Guard Timer will automatically shut off after 6 hr. This makes sure that, in cases where batteries are taking far longer than normal to charge, they will not be exposed to excessive current that could cause damage
Dual charging level indicator lights are red while batteries are charging and turn green when charging is complete. They will flash red if the batteries are not charging properly
Switching 100-240VAC input power allows you to use the charger all over the world
The compact outlet prongs fold in and out to make the unit smaller for easier storage
Configuration 2 or 4 AA or AAA batteries
Battery Type Nickel-Metal Hydride (NiMH) or Nickel-Cadmium (NiCd) batteries (not included)
Microprocessor Control Negative Delta-V with Zero Slope Detection
Automatic Shut-Off Safety Guard Timer shuts off after 6.0 hr if batteries are not charging properly
Input Power 100-240 VAC, 50/60 Hz, 10 W
Output Power Up to 2.8 VDC, 500 mA per battery
Charging Time Approximate times:

2x AAA: 100 min
4x AAA: 200 min
2x AA (1800 mAh): 110 min
4x AA (1800 mAh): 220 min
2x AA (2400-2500 mAh): 140 min
4x AA (2400-2500 mAh): 280 min
Indicator Lights 2x charging level indicators: Red while batteries are charging, green when charging is complete, flashing red if batteries are not charging properly
Operating Temperature 32 to 113° F (0 to 45° C)
Connector 2-prong US plug
Dimensions 4.3 x 2.7 x 1.3" (10.9 x 6.9 x 3.3 cm)
Weight 2.8 oz (79.4 g)
Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries
  • Instruction Manual
  • Limited 1-Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Watson4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries
     
    4.6

    (based on 42 reviews)

    Ratings Distribution

    • 5 Stars

       

      (32)

    • 4 Stars

       

      (7)

    • 3 Stars

       

      (1)

    • 2 Stars

       

      (1)

    • 1 Stars

       

      (1)

    90%

    of respondents would recommend this to a friend.

    Pros

    • Compact (34)
    • Fast charge (19)
    • Well built / quality (13)
    • Easy to use (12)
    • Lightweight (8)

    Cons

      Best Uses

      • Travel (20)
      • Portable electronics (14)
      • Having around the house (13)
      • Office (8)
      • High-end equipment (5)
        • Reviewer Profile:
        • Quality oriented (17), Budget shopper (7), Pro photographer (4), Semi-pro photographer (4), Photo enthusiast (3)
        • Primary use:
        • Personal (16), Business (10)
        • Was this a gift?:
        • No (38)

      Most Liked Positive Review

       

      Getting to know it

      WARNING!! this is a charger that works like a charm, just don't pay attention to the charging directions.

      Here's the scoop: When you start charging the batteries the 2 LCD...Read complete review

      WARNING!! this is a charger that works like a charm, just don't pay attention to the charging directions.

      Here's the scoop: When you start charging the batteries the 2 LCD red lights will blink and instantly will stop doing it, but it doesn't mean the charger is not doing it's job, is just that the lit red lights will stay on 'till the batteries are completely charged and then the LCD lights will turn green.

      It's a matter of typo error on PEARSTONE part but the chargers work just fine, I should know I bought 2 from B&H

      VS

      Most Liked Negative Review

       

      So-So at Best

      Seems to charge my NiMH batteries quickly as promised but the charge indicator LED's are unreliable. They are suppose to flash during charging and remain lit when charging is done while keeping the batteries...Read complete review

      Seems to charge my NiMH batteries quickly as promised but the charge indicator LED's are unreliable. They are suppose to flash during charging and remain lit when charging is done while keeping the batteries trickle charged. However, I insert nearly completely dead NiMH rechargables and the LED's flash for a couple seconds then remain lit but the batteries are not charged. If I leave the batteries in the charger they do get charged in about four hours but I can only tell by feeling them get hot during charging and then cooling when charging is complete. I have tried the charger with several brands of NiMH batteries and the results are the same. This charger is value priced but I would have gladly paid more for better reliability but options are limited.

      Reviewed by 42 customers

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      Displaying reviews 1-20

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      4.0

      Does the job well

      By Coastal Dog

      from Gulf Coast

      About Me Semi-pro Photographer

      Pros

      • Compact
      • Easy to Use
      • Lightweight

      Cons

      • Dim Chrng And Full Lites

      Best Uses

        Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

        Does the charging job as advertised. The charging and full lights could have been designed a bit better. Depending upon the outlet where you are charging, the red and, green lights are dim and hard to see. Canon solved this by writing in white letters, "charging," and "full" next to their indicator lights Watson needs to look at how Canon did it. Otherwise it seems to be a good charger.

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        Brilliant

        By KeenPhotographer_11

        from Brisbane Australia

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Compact
        • Durable
        • Easy to Use

        Cons

          Best Uses

          • Travel

          Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

          Being 110-250 V adaptable I now have a very lightweight and technologically cleaver battery charger that I can use anywhere in the world. You will need a plug adaptor to fit the USA pins if being used elsewhere. Fast charge is great and the red flashing signal tells me if I have a bad AA in any pair being charged.

          • Was this a gift?:
          • No

          Share this review

           
          5.0

          "I would buy this product again and agai

          By MAG

          from New York, NY

          About Me Photo Enthusiast

          Verified Buyer

          Pros

          • Compact
          • Durable
          • Easy to Use

          Cons

            Best Uses

            • Travel

            Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

            I like it because it works properly

            • Was this a gift?:
            • No

            Share this review

             
            5.0

            Rapid Charger Charges Rapidly

            By susanagraph

            from Washington DC

            About Me Pro Photographer

            Verified Buyer

            Pros

            • Compact

            Cons

              Best Uses

                Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                does what it is supposed to do in a portable package. good price.

                • Was this a gift?:
                • No

                Share this review

                 
                5.0

                Works Great.

                By Coney123

                from Brooklyn, NY

                Verified Buyer
                Staff Reviewer

                Pros

                • Compact
                • Durable
                • Easy to Use
                • Lightweight

                Cons

                  Best Uses

                    Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                    Does the job perfectly!

                    • Was this a gift?:
                    • No

                    Share this review

                     
                    5.0

                    Works great!

                    By Photo Man

                    from Chicago

                    About Me Semi-pro Photographer

                    Verified Buyer

                    Pros

                    • Compact
                    • Easy to Use

                    Cons

                      Best Uses

                        Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                        1st Watson product I've used. Loads AAA or AA batteries easier than 2 other brands I've used. Charges completely in less than 4 hours for my AAA 1000ma NiMH batteries.

                        • Was this a gift?:
                        • No

                        Share this review

                         
                        5.0

                        Electrifying!

                        By MammyJammy

                        from A ficticious town outside of Weehawkin

                        About Me Pro Photographer

                        Verified Buyer
                        Staff Reviewer

                        Pros

                        • Good Audio Quality

                        Cons

                        • Poor Image Quality

                        Best Uses

                          Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                          Got the charger, plugged it inna wall, plugged in the batteries, and holy-moly they were charged later that day.
                          Ain't dat somtin? No?

                          • Was this a gift?:
                          • No

                          Share this review

                           
                          5.0

                          Does what it says!

                          By MIKE

                          from LATHROP, CA

                          About Me Semi-pro Photographer

                          Verified Buyer

                          Pros

                          • Compact
                          • Easy to Use
                          • Lightweight

                          Cons

                          • NA

                          Best Uses

                            Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                            I have some devices that use AA & AAA NiMH & NiCd batteries, a DISH remote, and my "land-line" phones.
                            The charger is small & compact, and easy to use. The instructions were not quite clear on how to install AAA batteries to recharge, but it only took me a minute to figure it out.

                            Share this review

                             
                            5.0

                            Works as advertised!

                            By Dave

                            from New York, NY

                            Verified Buyer

                            Pros

                            • Compact
                            • Easy to Use
                            • Lightweight
                            • Saves Money

                            Cons

                              Best Uses

                              • Any Use Of Batteries

                              Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                              Nothing to understand. Insert the batteries, plug the charger into the wall, and forget about it. When the lights turn green the batteries are charged. Couldn't be easier. I'll never buy "real" betteries again!

                              • Was this a gift?:
                              • No

                              Share this review

                               
                              5.0

                              Rapid Charger works great

                              By Roadkill

                              from Northern California

                              About Me Casual Photographer

                              Verified Buyer

                              Pros

                              • Compact
                              • Easy to Use

                              Cons

                              • None

                              Best Uses

                              • Replaces Costly Alkalines

                              Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                              I use a lot of AA & AAA batteries and this system helps me save a lot of money on not having to buy so many Alkaline Batteries all the time. It works great.

                              • Was this a gift?:
                              • No

                              Share this review

                               
                              4.0

                              Seems to do the job.

                              By Monsieur Canon

                              from Vancouver

                              About Me Photo Enthusiast

                              Verified Buyer

                              Pros

                              • Compact
                              • Easy to Use
                              • Lightweight
                              • Universal Voltage

                              Cons

                                Best Uses

                                  Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                                  Use to charge AAs for flash units both at home and on the road.
                                  What's great about it: Universal voltage and folding plug makes for easier transport and usage in other countries with different voltages. Is light weight.
                                  What's not so great about it: Haven't used it that long so don't know how long it will last.

                                  • Was this a gift?:
                                  • No

                                  Share this review

                                   
                                  5.0

                                  Convenient

                                  By Apostle

                                  from Milton, DE

                                  Verified Buyer

                                  Pros

                                  • Compact
                                  • Convenient
                                  • Easy to Use
                                  • Lightweight

                                  Cons

                                    Best Uses

                                    • Ministry Services
                                    • Travel
                                    • Video

                                    Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                                    I use this for my remote control for the TV and for my Flip camera. This product is so convenient because I am able to recharge the batteries and use them again and again without having to look for a store to purchase batteries at the last minute.

                                    • Was this a gift?:
                                    • No

                                    Share this review

                                     
                                    5.0

                                    Awesome little charger

                                    By Kat

                                    from Vermont

                                    About Me Pro Photographer

                                    Verified Buyer

                                    Pros

                                    • Durable
                                    • Easy to Use

                                    Cons

                                      Best Uses

                                      • Weddings/Events

                                      Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                                      I use this charger to charge up my Sanyo XX Powered by Eneloop 'AA' Batteries. Unlike my old Enloop charger, this one doesn't insist on only charging when all four battery bays are occupied.

                                      This one charges when you insert a pair of batteries and also give the amount of charge and charges incredibly fast. Great charger.

                                      • Was this a gift?:
                                      • No

                                      Share this review

                                       
                                      5.0

                                      Good charger

                                      By Shannon

                                      from Texas

                                      About Me Pro Photographer

                                      Verified Buyer

                                      Pros

                                      • Compact
                                      • Easy to Use
                                      • Lightweight

                                      Cons

                                        Best Uses

                                          Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                                          Does what it is supposed to and is compact and fits in bag nicely.

                                          Share this review

                                           
                                          4.0

                                          Works well!

                                          By Joe G

                                          from Hollywood, CA

                                          About Me Semi-pro Photographer

                                          Verified Buyer

                                          Pros

                                          • Compact
                                          • Lightweight

                                          Cons

                                          • Flimsy Construction

                                          Best Uses

                                          • Travel

                                          Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                                          Does the job as noted.

                                          • Was this a gift?:
                                          • No

                                          Share this review

                                           
                                          5.0

                                          FERD

                                          By FEDERICO

                                          from DETROIT

                                          About Me Quality Oriented

                                          Verified Buyer

                                          Pros

                                          • Compact Design
                                          • Durable Construction

                                          Cons

                                            Best Uses

                                            • Having Around The House

                                            Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                                            MUY FACIL DE USAR TIENE INDICADORES DE CARGADO

                                            • Primary use:
                                            • Personal
                                            • Was this a gift?:
                                            • No

                                            Share this review

                                             
                                            5.0

                                            Does what it says it does

                                            By dreamattempo773

                                            from Chicago, IL

                                            About Me Quality Oriented

                                            Verified Buyer

                                            Pros

                                            • Compact Design
                                            • Durable Construction
                                            • Fast Charging

                                            Cons

                                              Best Uses

                                              • High-End Equipment
                                              • Portable Electronics

                                              Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                                              Provides a full charge after 4 hours. Very reliable

                                              • Primary use:
                                              • Business
                                              • Was this a gift?:
                                              • No

                                              Share this review

                                               
                                              5.0

                                              Better than Sanyo Eneloop

                                              By guy from canada

                                              from toronto, ontario

                                              About Me Quality Oriented

                                              Pros

                                              • Compact Design
                                              • Durable Construction
                                              • Fast Charging

                                              Cons

                                                Best Uses

                                                • Having Around The House
                                                • High-End Equipment
                                                • Office
                                                • Portable Electronics
                                                • Travel

                                                Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                                                I have owned the Sanyo Eneloop battery chargers and recently purchased 1 of these to try out. They charge my eneloops much much faster. very happy with this that I purchased 3 more!

                                                • Primary use:
                                                • Business
                                                • Was this a gift?:
                                                • No

                                                Share this review

                                                 
                                                4.0

                                                Very Effective Rapid charger

                                                By Gualbert

                                                from San Juan, PR

                                                About Me Value Oriented

                                                Verified Buyer

                                                Pros

                                                • Compact Design
                                                • Fast Charging

                                                Cons

                                                • Flimsy Construction

                                                Best Uses

                                                • Portable Electronics
                                                • Travel

                                                Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                                                Very Effective Rapid charger, and convinient, charges other batteries rapidly too.

                                                • Primary use:
                                                • Business
                                                • Was this a gift?:
                                                • No

                                                Share this review

                                                (0 of 1 customers found this review helpful)

                                                 
                                                5.0

                                                Excellent charger!

                                                By JTan

                                                from Hillsborough, NJ

                                                About Me Quality Oriented

                                                Verified Buyer

                                                Pros

                                                • Compact Design
                                                • Durable Construction
                                                • Fast Charging

                                                Cons

                                                  Best Uses

                                                  • Portable Electronics
                                                  • Travel

                                                  Comments about Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries:

                                                  Great construction, and works wonderfully to charge AA batteries for my job (wedding photography). Construction is simple and very well-made for it's use. It's not bulletproof.. but really, who needs anything more than a simple charger that does the job?

                                                  • Primary use:
                                                  • Business
                                                  • Was this a gift?:
                                                  • No

                                                  Share this review

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