Girafus 4xLIR-2016 Rechargeable Button Cell Batteries/Replaces Coin Cell Batterie CR2016 / 3.7V Lithium-Ion / - eg: Mainboard, PC, Bicycle Computer, Toys, Pet Tracker, Bathroom Scales

I've given very complimentary reviews for the Girafus cat tracker device and bought these 3.7V rechargeable button cells for that device, to save money overall. The rechargeable feature is appealing, but not when you have to do it every two weeks instead of changing standard buttons every 6 months. A total waste of money. Back to proper 3.2V cells that actually have some capacity.Adding to my original post above; they are even worse than I first said, and again, consistent with comments from others, once you recharge them the charge is retained for an even shorter period of time. So, with reference to the the battery above that lasted for two weeks, now after full recharging (verified by standard electrician's voltmeter) has lasted three days. So the charger you also have to buy now has no use whatsoever. I feel conned.

Returned as batteries only lasted 2-3hrs

They are slightly thicker than a normal CR2016 so can be difficult to force into the battery holder on some remote control handsets - especially if your remote is the same as mine and has two stacked together..

Good quality rechargable batteries, handy size, useful for portable devices

Nothing to dislike, does what it says a rechargeable battery. Easy.

Does what it’s said to do

Exactly what was expected

Great just arrived by India post earlyStamped pSs at Delhi custome no feeVery good quality