I want to store a car with battery connected for perhaps a month or
two during winter. What is a good trickle charger to keep hooked up
on it to keep the battery from dying ? Will it matter if the battery
is not at full charge when I put it on? Since I never had one, do
they use alligator clips like a regular charger? Recommendations for
a "good" one regardless of price? Thanks all.
I have used the Battery Tender Plus for about 10 years. Two leds tell the
state of charge.
Has both alligator clamps and round terminal ends with a connector in the
charging cable. With the round terminal ends, you can wire your car and
have a hidden connector that is easy to access when the car is parked in the
One more neat trick that I do with these on my Harleys is to install the
quick disconnect lead for the charger and throw the clamp-on leads in my
saddle bag...makes for a quick hookup jumper cable set that fits in a
No reason that wouldn't work for a car, unless the wire gauge isn't
I have both the Schauer (sp?) battery tender and a Black & Decker. Both
work quite well and the wire gauge will not be a problem. Both have the
LED's and circuitry that keep the battery topped off (no more, no
less)by cycling it on and off as needed. I don't think either one cost
more than $25 - $27.
The Black & Decker comes with both the clips and the round terminals AND
a polarized quick disconnect plug with a little rubber seal. As a
result, the Black & Decker was "assigned" to the Corvette and if the
roads are clear and dry in December and I want to take a spin it's quite
easy to hit the road and reconnect upon my return.
Started to use it on Sunday and by Monday I could see the storage
light now on solidly. It appears to work great. I guess I should
hold back and give it more time but at this point, it appears to work
just as it's supposed to.
Thanks again to both of you.
One little detail that I noticed with my battery on the trickle charger and
it could be a characteristic of all trickle chargers (Battery Tender Plus)
. After being attached for about 3 years, showing full charge the entire
time (green light), I found my battery did not start my car. Found the
cells had gone dry. Took it back to the auto store where I bought it to
get credit on a new one. I refilled the cells with distilled water so that
it looked like I had taken good care of the battery (was a no maintenance
battery, anyway). They tested the battery at full load and it tested good.
Took it back home for another 3 years of use, also using the trickle
charger. Finally car would not start, cells were dry, and filling with
water would not recover the batter. New battery then after 6 years.
Just periodically check the water level. After a long period of time, it
Batteries are complex animals. Note the problem Boeing is having. Also
issues with batteries for electric cars. The instantaneous torque in
traction motors can be immense. However, a battery is like a small bomb
when you consider the energy stored. Very difficult to contol all the
reaction modes in a battery.
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