stupid human questions, 12v => 110v => 12v Options

[machina]

Haven't had a problem with the battery running down yet but...

if I wanted to give a quick charge at the track, could I...

run an inverter in the truck to power a small 10 amp charger, to boost the battery between runs?

Will it run my truck battery down in a 1/2 hour? How big of an inverter will I need to run the charger? I've checked different brands specs but they don't seem to tell what the power consumption is.

[TonyAKAVW]

QUOTE

if you bridge 2 batteries, do they achieve some kind of electrical zen?

Yes. Think of it as two glasses of water. One full, one empty. But when you pour one glass into the other, you lose some of that water to in one case, the conversion inefficiency of a power supply and inverter, or in both cases to the internal resistance of the battery. In the end, the total amount of water is less. In the case of connecting the two batteries together, they will both equalize at some voltage. For an inverter/charger one will be drained more (because the inverter has the ability to suck more out of a battery than just bridging the battery) and the other will have a higher voltage. However, the total amount of eneergy will have been reduced more than for the first case.

Just take a second battery if you are worried, its probably the cheapest way to go if you don't want to run the truck for a while.

-Tony