I have a 7.2 volt 4200mah flat battery pack made by proboat, and it will not work. When i try to charge it just beeps, and when I run it the battery has no power. Do you have an idea what is wrong?
Defective battery? Defective charger? Defective contact terminals? Gotta be one of these!
Crook charger. It thinks the battery is charged. OR: Crook battery. Or 1 crook cell. Do you have any other means of charging it for a test?
Could just be old. Sounds similar to the battery packs used in my construction tools, or even my computer/cell phone. When I bought my iPhone, I checked with a battery shop (Batteries Plus - national chain). They said most batteries are good for about 400 to 500 recharge cycles. Excessive heat or cold damages them. Take it to a Batteries Plus or similar battery specialty shop for testing. They can tell you what's going on, and probably sell you a replacement for less than most places. They've been much cheaper for batteries for my Paslode tools, and for the laptop PCs.
