Car chager use


#1

I’m a snowbird, spending 6 mos a year in Florida and 6 mos in Massachusets. I leave a car in my garage when I’m away. Should I use a trickle charger when car is not in use or is just disconnecting the battery ok?


#2

Disconnecting the battery is the cheapest, simplest route if car doesn’t have problems with losing stored information in the electronics.
Another option is a Battery Tender, which is an automatic slow charger/maintainer.
Third is a cheap trickle charger connected to a household timer set for 1 hour per day.
Don’t use a simple trickle charger continuously.


#3

I wouldn’t use a trickle charger, and for newer cars I wouldn’t disconnect the battery. I’d use a battery tender, as recommended above.


#4

If you are going to disconnect the battery, take it out and store it in a place that is above freezing, unless of course the car is in a heated garage. Not doing so will freeze and damage the battery as it gradually discharges.

I have 2 lead acid batteries for my lawnmower, and they are stored in the basement over the winter and occasionally trickle charged up.


#5

This is what you need. I have one and it works great. It will not overcharge your battery. Hook it up, leave it for 6 months, and when you come back the car will start right up.


#6

What’s the difference between a trickle charger and a battery tender?


#7

A trickle charger puts a low, but constant, current through the battery, potentially overcharging it. A battery tender monitors voltage and current, reducing and shutting down charging when the battery’s charged, then charging when needed.


#8

I do the same thing and just disconnect the battery…I don’t like leaving things plugged in for 6 months in a vacant building…During the cold winter months, the battery self-discharge rate is very low…When we return, the car starts right up…