The 12-volt ... a 10-amp charger puts twice as much charge into the battery as a 5-amp one. A quick stroll through a listing of battery chargers can be confounding though. Some have 40 amps ...

This charger from Stanley is of the 15-amp variety but can muster 40 amps to start a vehicle in ... fully automatic charging for 6- and 12-volt batteries. The LCD screen keeps you abreast of ...

Start Dead Batteries - Safely jump start a dead battery in seconds with this compact, yet powerful, 2000-amp lithium battery jump starter - up to 40 jump ... connect to any 12-volt vehicle with ...