Reviews
Submited By: James Evans on 02/03/2010I received four of these AA batteries when I purchased the awesome Lenmar R2G802U R2G charger from Amazon:
Lenmar R2G802U R2G 2 Hour Charger Includes USB Output and Alarm Clock with 4 R2G 2150mAh NI-MH for AA/AAA Batteries
I was looking for a new home charger and wanted to try the world of low discharge / pre-charged NiMH batteries. Let's just say that I chose well. The charger is awesome, charging each cell independently, with lots of features, including the ability to charge USB devices (like my bluetooth headset) when plugged into the wall.
And for the batteries? Like another poster said, I am never going to by normal NiMH batteries again. One of my biggest disappointments with NiMH batteries, was that they would just die on their own after not using them for a while. Now, with these R2G cells, my digital R2GAA8 General Purpose Battery Battery can last for weeks and when I need it, it still turns on and takes pictures. I broke my own rule and bought some normal NiMH AAA batteries for my flashlights (since they were only six dollars for four batteries at wallyworld) , but I think I might try some of these AAA R2G batteries next:
Lenmar Ready-2-Go R2GAAA8 1.2V 850mAh Rechargeable NiMH AAA Battery (8-Pack)
I would definitely by more Lenmar R2G batteries, and like I said above, I highly recommend their R2G802U charger!
Submited By: Leon H. Sargent Jr. on 02/04/2010I have been using rechargeable batteries for 5 years now and I have seen the vast improvement in both capacity and the ability to hold a charge for length of time.
The R2G's have held up to what they have promised as other batteries of a higher capacity of 2800 mAH might have kept my demanding bluetooth keyboard with lots of obstacles in the the direct line of sight, so more battery power needed, charged for maybe 3 to 4 days without ever being turned off.
The R2G batteries I can leave in for 7 + days where the longest is 9 days.
I use two BC-700 battery chargers which you can get right here on Amazon as I only use rechargeable batteries and a lesson learned is 200, the default charging rate is the one that will give you the longest life and the most use out of your rechargeable batteries.
Submited By: J. Libson on 03/10/2010These are very poor batteries. We have 4 kids and go through a lot of batteries. I have had the eneloops for more than a year. I just got these because they are cheaper.
That is the only good thing I can say about them. They are cheaper.
They simply don't work that well.
They discharge much more quickly than the eneloops. We use them in Leapster games (for the non-parents that is a little hand held video game device).
I also tried using them in a battery powered toothbrush and it could not generate enough current to even START the brush. I thought that the brush was broken, but I popped in an eneloop and it worked fine.
Bah. If there is a less expensive alternative to Eneloop this isn't it.
Submited By: Ace on 07/15/2010This type of rechargeable battery holds its charge over a long period of time, unlike traditional rechargeables. The convenience of not having to worry about whether you recently recharged a set of batteries is well worth any small additional cost.
My experience with this brand is fine after six months of use and they are considerably cheaper than the eneloops.
Submited By: NLee the Engineer on 08/28/2010According to the product description of Lenmar Ready-2-Go R2GAA8 Rechargeable NiMH AA Battery, the Lenmar R2G cell is even better than the well-known SANYO eneloop, because:
- It is "Ready to use right out of the package" just like eneloop, and
- It has a higher capacity of "2150mAh", instead of just 2000mAh for eneloop.
I purchased a set of those Lenmar R2G cells a few months ago, and analyzed them using my old La Crosse BC-900. Here are my findings:
- When received, the average remaining charge in Lenmar R2G cells is only 800mAh, which is less than 40% of rated capacity. So the claim of 'Ready To Go" is marginal at best. In contrast, all eneloop cells I have tested came with at least 70% of rated capacity - even those manufactured 22 months ago!
- After several Discharge/Recharge cycles, the average capacity of Lenmar cells reached 2030mAh, which is below the rated 2150mAh. In contrast, most of my eneloop AA cells measured ABOVE rated capacity, close to 2100mAh instead.
- After sitting on the shelf for 100 days, average remaining charge in Lenmar cells is 85% of original capacity. This is slightly worse than the self-discharge rate for eneloop, although better than that for ordinary NiMH cells.
So the bottom line is: the Lenmar R2G cell is not bad as an off-brand pre-charged battery. But it does NOT offer higher capacity than Sanyo eneloop. So unless you can find it at a substantial saving, I suggest staying with the tried-and-true Sanyo eneloop instead.


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