Please make sure selecting the right battery,compatible with your original product . If you are not sure, please send email to us with your battery details or pictures,we will give you professional suggestions. The following is the information of our battery, please check it carefully before purchasing. Compatible with battery Part number: Brady 41-BP Fit Model: Brady BMP41,BMP61 Caution: 1.Don't disassemble 2.Don't dispose of in fire or water 3. Don't store above 60 ℃(140℉)