Problems finding a good cr 2032 battery charger.

[jpnguyen21]

I had two bad experiences with cr 2032 chargers. The first charger that I tried doesn't charge any battery after the first one. The second charger was a similar experience. I don't want to spend a lot of money on a third charger because I already lost about $10.

Does anyone know a good cr 2032 charger for a low price?

 

[USAFRet]

1. What specific 2032 batteries are you trying to charge? Not all of them are rechargeable.

2, WHY are you looking to recharge these? CR2032 are so inexpensive....
What are you using these batteries for?

 

[punkncat]

I haven't dealt with a charger for these. They are available for sub .60c and last nearly a decade in most cases and often more.

 

[hotaru.hino]

Most CR2032 batteries you find in stores aren't rechargeable.

If you're confused because it's a "lithium" battery, not all lithium batteries are rechargeable. Generically speaking only lithium-ion batteries are.

 

[BFG-9000]

By definition, CR2032 are Lithium Manganese Dioxide (LiMn02) primary cells, which is to say they are not rechargeable.

BR2032 are also primary cells but based on Lithium Carbon Monofluoride so can tolerate a broader range of temperature environments and feature a more constant voltage, but are unsuited for higher current drain. They are also not rechargeable.

LiR2032 are the usual rechageable, Li-Ion versions of coin cells in this size. They are higher voltage at 3.7v nominal (so max charge is 4.2v) but hold only 35-50mAh of energy compared to the ~220mAh the above cells can deliver at low currents. These used to be called RCR2032 but Renata seems to have commandeered that designation for their brand of CR2032 cells.

Maxell has developed a 3.0v nominal rechargeable Manganese Dioxide Lithium cell called the ML2032. It obviously requires a special charger or will explode from overvoltage, and is usually charged in the devices they are intended to power such as the solar charging Logitech K750 wireless keyboard.