[ausev] Cold weather and lead acid batteries

[Gil Dawson]

On Dec 18, 2008, at 7:06 A, Ken Thomas wrote:
> PS. IMPORTANT: If you are using a charger that runs off of a 240 VAC
> input, the heater wire will need to be 50' long. 25 feet at 120 VAC is
> about 9 Watts per foot, which will warm the wire to the touch. 25' at
> 240 VAC would be about 18 Watts per foot, which would be hot enough to
> melt plastics and burn you if you touched it. 50' at 240 VAC will
> maintain the 9 watts per foot.

Isn't E squared?  Wouldn't that be 36 watts and 100 feet?

> one heater wire connects
> to the black wire and the other heater wire connects to the white wire


When you touch the warm wire put your other hand in your pocket.  And  
don't lean on the car.