If yours is no longer the way the should be working, or you need a spare, this is the perfect item

The rechargeable lithium battery comes in 2200, 2400 and 3200 mah. We sell the charger for your convenience too.

Feel free to ask any questions

Compatible to many brands including Weise Savior and many others including RST

The dimensions of the batteries are approx and are all approx between 14mm to approx 15mm in thickness