Cordless power tool battery replacements are expensive ... the middleman by converting his old cordless battery packs to inexpensive hobby lithium cells. These batteries appear to be Turnigy ...

What do you do, when your trusty cordless drill starts to lose battery ... straightforward one to anyone familiar with lithium-ion packs, but to a battery newbie it should serve as a handy step ...

By Paul Hope Over the last 20 years, lithium-ion batteries have revolutionized indoor and outdoor tools. Cordless drills ...