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Juice Rechargeable Alkaline Batteries, Size AA, 4-Count Packages (Pack of 3) | 
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| Brand: Juice Batteries
Category: Health And Beauty
This item is no longer available
Avg. Customer Rating:  3 reviews
Sales Rank: 35704
Number Of Items: 3
Shipping Weight (lbs): 0.3
Dimensions (in): 4.9 x 3.8 x 1.7
UPC: 015291500016
EAN: 0015291500016
ASIN: B001F0RDCM
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| Features:
| • | Recharge up to 100 times | | • | Low Cost | | • | Alkaline Batteries ready to use out of the pack | | • | Recharge anytime, Easy to use | | • | New Innovative Technology |
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| Customer Reviews:
 Good choice when NiMH won't do December 10, 2008
The Juice rechargeables are a good choice when you need the higher voltage of an alkaline cell. The net voltage for four Juice batteries is 6 volts as opposed to only 4.8 volts for NiMH. I use
them in an older handheld GPS receiver that requires 4 cells and drains batteries in only a few hours of use. Thus the rechargeable alkalines offer a significant savings in cost and trash over single
use batteries. In addition the Juice alkalines have a low self discharge rate unlike NiMH.
The batteries can be recharged in my old Rayovac model PS1 universal AA charger.
The only problem I've found with the battery form factor is that the positive contact cap is shorter than the old Rayovac AA cells. As a result the batteries don't make contact in my Rayovac model
PS2 charger.
 Not enough Joules in those rechargeable alkaline cells November 30, 2008
1 out of 1 found this review helpful
First of all, those Juice Rechargeable Alkaline Batteries cannot be recharged using ordinary NiMH chargers - not even the Juice Battery Family Charger. You need to find a charger specially designed for rechargeable alkaline cells, or use the Rayovac Universal Battery Charger which can handle both NiMH and Rechargeable Alkaline Manganese (RAM) cells.
The Juice RAM cells are reincarnations of the Rayovac "Renewal" rechargeable alkaline cells. Rayovac marketed the Renewal batteries and charger system about 10-15 years ago. But due to various limitations (as explained later) it turned out a big failure, and Rayovac consequentially discontinued the whole Renewal product line.
At first glance, the concept of rechargeable alkaline cell sounds great, since it combines advantages from both ordinary alkaline cell (long shelf life, 1.5V terminal voltage) and rechargeable cell (multi-use). Unfortunately, it also inherited the biggest limitation of alkaline cell: high internal resistance. This makes it very inefficient when used in high-drain appliances such as digital camera or flash light. So it is only suitable for low-drain appliances such as wireless mouse, remote control, or smoke detector.
Another serious limitation is energy density. The manufacturer claims that a new Juice AA RAM cell has capacity of 2000mAh (tested with discharge current of 50mA down to 0.8V at 22 degree C). My own measurement using the La Crosse BC-900 has shown an average capacity of only 1440mAh (tested with 100mA down to 0.9V at 17 degree C). In comparison, the Duracell alkaline AA cell under identical test conditions provided 2220mAh, or 50% higher capacity! Worse yet, capacity of Juice RAM cell drops further with each deep-discharge cycle. After five more charge/discharge cycles, its remaining capacity is only around 1000mAh. In comparison, a typical NiMH cell can go through about 500 deep-discharge cycles before it capacity drops to 90% of original value. (This is under controlled test conditions, so in real life your mileage may vary)
The product description claims that Juice RAM cell can be recharged 'up to 100 times'. But this is completely misleading, because it can only be achieved if you shallow-discharge (discharge no more than 25% of capacity) the cell every time. That means you have to remove the cell and recharge it very frequently, before the low-battery indicator ever comes up.
In my opinion, it is just not worth the trouble to 'baby-sit' those rechargeable alkaline cells, especially since you can easily buy low-self-discharge NiMH cells (such as SANYO eneloop or Rayovac Hybrid) instead.
But in case anyone still wants to experiment with recharging alkaline cells, here is my suggestion: Just buy and use the ordinary Duracell alkaline cells. When those cells are nearly exhausted, recharge them using the Rayovac Universal Charger. You can get half a dozen extra cycles out of them - at no additional cost!
 The blue ones do not work! September 30, 2007
1 out of 1 found this review helpful
I've tried these in different electronics and they do not work from the beginning! I tried to charge them and it makes the charger's red light blink. They do not work after charging!
Buy the green ones!
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