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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

Questions? Ask our experts:

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
UPC: 847628532953
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)
Packaging Info
Package Weight 0.35 lb
Box Dimensions (LxWxH) 5.3 x 4.0 x 1.4"
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 46 reviews)

    Ratings Distribution

    • 5 Stars

       

      (34)

    • 4 Stars

       

      (8)

    • 3 Stars

       

      (2)

    • 2 Stars

       

      (1)

    • 1 Stars

       

      (1)

    91%

    of respondents would recommend this to a friend.

    Pros

    • Compact (37)
    • Fast charge (19)
    • Easy to use (16)
    • Well built / quality (13)
    • Lightweight (10)

    Cons

    No Cons

    Best Uses

    • Travel (22)
    • Portable electronics (14)
    • Having around the house (13)
    • Office (8)
    • High-end equipment (5)
      • Reviewer Profile:
      • Quality oriented (17), Budget shopper (7), Semi-pro photographer (5), Photo enthusiast (4), Pro photographer (4)
      • Primary use:
      • Personal (16), Business (10)
      • Was this a gift?:
      • No (42)

    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 46 customers

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    Displaying reviews 1-20

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    3.0

    So far so good.

    By Mike

    from Detroit, MI

    About Me Casual Photographer

    Verified Buyer

    Pros

    • Easy to Use

    Cons

      Best Uses

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

        Works, but batteries lost 1/3 of charge on shelf 36 hours after charging. Not sure if this is normal for a new set.

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        works fine

        By Alex

        from Seal Rock, OR

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Compact
        • Durable
        • Easy to Use
        • Lightweight

        Cons

          Best Uses

          • Travel

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

          It works exactly as described. No surprises.

          • Was this a gift?:
          • No

          Share this review

           
          4.0

          Resultados normales

          By DNS Toledo

          from Miamo

          About Me Semi-pro Photographer

          Verified Buyer

          Pros

          • Compact
          • Easy to Use

          Cons

            Best Uses

            • Family Photos

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

            Durante la primer utilización tuve dudas de su comportamiento una vez que las baterías se habían cargado, en teoría debe ponerse en off automáticamente pero continuó cargando generándome la duda de si el circuito funcionó correctamente.He hecho varias cargas de batería habiéndose logrado la carga de las baterías de manera normal. estoy conforme con este producto pero tengo un grado de incertidumbre respecto a su uso

            • Was this a gift?:
            • No

            Share this review

             
            5.0

            Fast charging

            By Spice

            from Brooklyn, NY

            About Me Casual Photographer

            Verified Buyer

            Pros

            • Compact
            • Easy to Use
            • Lightweight

            Cons

              Best Uses

              • Travel

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

              I use this poduct to charge my batteries for my camera. It's really great because It charges quickly and I can take it with me every where due t its small size.

              • Was this a gift?:
              • No

              Share this review

               
              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

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