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  • PowerGenix ZR-PGX1HRAA-4B 1 Hour Quick Charger with 4 AA 1.6v NiZn Rechargeable Batteries
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PowerGenix ZR-PGX1HRAA-4B 1 Hour Quick Charger with 4 AA 1.6v NiZn Rechargeable Batteries


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  • High Voltage 1.6v AA Offers improved performance for any high drain devices especially Digital Cameras .   
  • Environmentally Green - Both nickel and zinc are non-toxic and recycled easily and inexpensively.
  • High Energy Density - The PowerGenix battery has up to a 33% more the energy density over standard rechargeable batteries
  • Input voltage: 110 - 240V, 50/60 HZ AC
  • Charger will charge 1,2,3,or 4 AA NiZN batteries or 1 or 2 AAA NiZN batteries independently

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Technical Details

  • Brand Name: PowerGenix
  • Model: PGX1HRCH-4AAZiNc-1.6v
  • Item Package Quantity: 1

Product Details

  • Product Dimensions: 1.8 x 4 x 7 inches ; 6.4 ounces
  • Shipping Weight: 9.6 ounces
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B0029NZVZ0
  • Item model number: PGX1HRCH-4AAZiNc-1.6v
  • Average Customer Review: 3.3 out of 5 stars  See all reviews (138 customer reviews)
  • Date first available at Amazon.com: June 5, 2009

Product Description

PowerGenix – 1 Hour Quick Charger with 4 AA 1.6v Nickel Zinc high voltage rechargeable batteries 2500mWh

Customer Reviews

These batteries charge quickly and last a long time.
thehandoftheking
After about a month of trying different things I contacted platinumbuys and they told me it was to late for return and they would not send new batteries.
william leinert
Many devices do not appreciate the higher voltage (1.6-1.8V) and higher current of these cells.
Gregory King

Most Helpful Customer Reviews

378 of 403 people found the following review helpful By NLee the Engineer HALL OF FAMETOP 50 REVIEWER on July 19, 2009
This product (PowerGenix 4-Position Charger with 4 AA High Voltage 1.6v 2500 mWh ZiNc Rechargeable Batteries) contains an 'one hour' charger specially designed for Nickel-Zinc AA/AAA cells. But it does not fully recharge to 100% within one hour. If you read the fine prints, it actually says "For maximum capacity from batteries charge up to 2.5 hours".

Despite its misleading name, this is actually a decent 'smart' charger. It works from universal input voltage (100-240V), and accepts 1-4 AA cells or 1-2 AAA cells. Each cell is charged individually (not in pairs). The red LED lights up during charging, and the green LED lights up when done. Just remember that you must not use this NiZn charger for NiMH cells, and vice versa.

The batteries are the new Nickel-Zinc rechargeable AA cells. The greatest selling feature of NiZn cell is its higher terminal voltage. The nominal operating voltage of NiZn is 1.65V, which is very close to alkaline and 30% higher than NiMH (1.25V nominal). However, when freshly charged, the NiZn terminal voltage is around 1.85V, which is dangerously high for most battery-operated appliances.

Upon closer examination, many of the alleged benefits of NiZn turn out to be just marketing hypes. For examples:

"Higher Energy Density":
Despite what the confusing rating on the package ("2500 milli-WATT-hour") may suggest, the PowerGenix AA cell does NOT contain more energy than a SANYO eneloop AA cell.
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57 of 61 people found the following review helpful By James P. Garin on December 7, 2009
Verified Purchase
Interesting technology....and somewhat scary if you look at the 1.8 volt figure. I got a 2 set of them to test. I have UW LED lights..and two large strobes that both take 4 AA batteries.

Until trying these, I have been using eneloop's (or the japanese duracell version)..which are very nice nimh's. The larger capacity standard rechargables work well in the strobes for the first 20 or 30 cycles, but eventually one of them will have charging/discharge issues and mess up the strobe firing and recycle time.

As they are higher voltage, there is the possibility that they would not work, or could damage equipment, so I started my testing with a simple 4 AA LED light that produces around 100 lumins. I charged the batteries and put them in light, and tested the light for one hour every week. The light was slightly brighter initially, but to my amazement, did not loss very much brightness over a two month test window (standard Ninh's drop off considerably after the two houra with this light). After nine weeks and 9 hours, I stopped the test (the light is supposed to last 6 hours with standard Ninh's).

Note: Capacity and discharge rate are related with batteries....faster usually means less capacity, slower means more.

Only issue I had was that this underwater light was not meant to be run for any length of time on the surface and there was some heat distortion of the plastic case making getting the thing apart really tough. My latter tests were with lights in water.

Then I installed them in a larger LED with 180 lumin light output....to my surprise, the light was the same intensity as with Ninh's.. as it turns out the unit has a voltage regulation system and and over temperature sensor.. which never went off.
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46 of 51 people found the following review helpful By K. MLarke on November 16, 2009
Verified Purchase
I've been using these new nickel-zinc AA cells for about 2 months now. I'm impressed by how long they will power things compared to the usual NiMh cells.

I have a Magellan GPS unit that uses 2 AA's. It was probably designed for alkaline cells. New alkaline cells give a full scale battery bargraph, but freshly charged NiMh cells only make the bargraph hit about 80%. NiMh cells drop to about half scale after an hour. I only get about 4 hours with NiMh cells before the voltage drops too low and it turns itself off. Alkalines will last about 7 hours. The new PowerGenix NiZn cells give a full scale battery bargraph for about 3-1/2 hours, then it slowly drops until the unit turns off. My first test powered the GPS for 6 hours and 20 minutes, the second time it went 6 hours and 55 minutes. I left the batteries in the charger longer the second time I charged them, about 4 hours instead of 2. With my GPS, the PowerGenix AA's lasted almost twice as long as 2200mAh NiMh.

I have also used these in my Fuji digital camera that uses 2 AA's. They also last a long time, longer than the NiMh cells I have used in the past. The LCD display is also just a little brighter with the NiZn cells.

I have a little Grundig G6 radio that also uses 2 AA's. It won't turn on with these installed. I'm guessing that the radio is sensing the higher than usual voltage (about 3.6 volts) and won't power up. This is the only device I have found so far that isn't happy with the NiZn cells.

When these come out of the charger, they read about 1.82 volts without a load using my Fluke DMM. Of course the voltage will drop when current is drawn and as the battery discharges.

To sum it up, these cells act a lot more like alkaline cells with the higher voltage available.
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