HYPERPS 1.2V AA 1200mAh Ni-MH Rechargeable Battery for High-Drain Devices, Quick Charge (Flat Top w/Soldering Tabs) (16)

Good value, reasonable price for this capacity NiMH AAs. Used them to replace cells in 2 Dremel packs that had each contained 6 x 700 mAh NiCd cells, 2 sets of 3 cells in series that run in parallel for low speed and in series for high speed.On the 40-hour break-in cycle, batteries measured 1240 mAh to 1279 mAh during the discharge phase at 240 mA CC, which is 5%+/- better than nominal. Cells are fairly consistent regarding other parameters as well, and internal resistance is reasonable considering the welded solder tabs. One of the solder tabs came off at the welds when I was assembling a pack, but that was likely my fault from a bit too much flexing of the tab as I was trying to solder the sets together without a holding fixture.I would buy again from this seller.

I hoped it was just the first couple that were bad. No wonder only six people have reviewed this product. Anyone else that ordered them probably threw them away. ONLY WORKED FOR A COUPLE HOURS AFTER CHARGED. DON'T BUY FROM THIS SELLER! SHOULD BE A NEGATIVE RATING. NOT EVEN WORTH ONE STAR.

They fit in old case . No history yet but they work fine so far. Be careful not to short them, they are powerful and get very hot!

Not flat-top and does not have solder tabs as described.

Bought 8 and made a 8-series pack from it to replace dead NiCD cells in RC toy battery pack that is no longer made. I cut open the pack with a hacksaw to get the old batteries out and then after soldering the new cells together and putting them in the pack I just superglued it back together along the hacksaw'd seams. It worked very well but there are rough edges from the hacksaw.... could probably fix that with some black epoxy / potting compound.Initially charged the cells at 0.1 amp for 8 hours to bring them all into balance.After being drained fully by RC toy until the toy would not work anymore, the cells accepted a full 1200mAh on my B6AC charger after being drained by RC toy. Is a monster RC truck and these batteries provide enough current for it without too much voltage depression (the RC truck and it's heavy duty motor work well on these batteries)I set my B6AC charger for 1200mAh capacity cutoff and it cuts off on the capacity before dV/dT determination (I have it set to extra-sensitive dV termination of 5mV).... so I think the cells are AT LEAST 1200mAh since the charger did not detect negative dV of 5mV after pumping 1200mAh into the batteries.....

I ordered a 4 pack of these batteries...advertised as having solder tab connections.What I received is 4x standard AA button top batteries.I ordered solder tabs for a reason.

Ok

Bought these because they had solder tabs, except that the ones received were just regular batteries, no tabs. Had to return them.