Home » Car Batteries » How Much Power Consumption Does A Car Battery Charger Use How Much Power Consumption Does A Car Battery Charger Use We have an old auto battery charger and I am curious I cannot find any information on the charger itself. Tags:Battery, Charger, consumption, much, Power Related Questions What Are The Proper Procedures For Charging A Car Battery With A 10 Amp Battery Charger Also, does it matter where I connect the ground? I’ve read to neg terminal and some say somewhere else on the car. Jumping A Car My Battery Died I Have Battery Charger.. What do I do to jump it? What color is neg and what color is pos? What if I put the wrong one on the neg & the wrong Answers for The Question e-vill not much its only meant for 1 hour of charging at a time just enough for road trips not to leave stuff in your car. Don E amps X110 volts = watts (eg;10 ampsX110=1100 Watts per hr.) Ironhand Depends on the charger, and the charge rate. It is pretty difficult to tell you, because a small trickle charger might use something in the area of 150 Watts while the larger bench type chargers might use 10 times that. A full sized floor charger could draw as much as 25 amps. Does this give you a ballpark figure? Happy Motoring Incoming search terms: How Many Watts Does A Battery Charger Use,How Much Electricity Does A Car Battery Charger Use,How Much Power Does A Battery Charger Use,How Many Watts Does A Battery Charger Draw,How Many Amps Does A Battery Charger Draw,How Much Power Does A Car Battery Charger Use,How Many Watts Does A 20 Amp Battery Charger Draw,Car Battery Chargers Uses Est Watts,What Is The Typical Power Consumption Of A Battery Charger For A Car,How Many Watts Does A 30a Battery Charger Draw?