car battery maintainer

I have not been able to directly find the answer if a solar powered battery maintainer that charges very slowly can overcharge a car battery? It is for a car that isn't driven very much, and we are in MN and need to have a good charge on the battery to start the car.

Thanks for any help! The product I purchased make no claims that it won't overcharge - it's one of those made in China things from Fleet Farm store.

I keep one in my car (also in MN) and have never had a problem with overcharging.

2007-12-20 17:26:58 by gardensallday

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It has been pretty cold here, and I don't drive my car very often right now- like once a week. Due to the temperature, the car's battery does not have enough charge to start the powerplant after a week. I have seen solar battery maintainers on the internet, but can I make one myself? I have a small solar panel that is 1.83V and 500mA. I also have an old car cellphone charger with two wires. Is there any way I can use the solar panel connected to the charger, plugged into my DC port in the car?

To keep a fully charged battery fully charged, you'd need at least 300ma at 13 volts.

2009-02-04 19:06:48 by natedogg787

Price: $59.80 $19.00

Includes charger, jump cables, ring connectors
6-volt and 12-volt battery charger; automatically changes from full-charge to float-mode monitoring to prevent overcharging
Rugged plastic housing
Ideal for keeping batteries charged while in storage
7.1 by 10.5 by 5.9 inches; 5 pounds; 1-year limited warranty

I have a small solar car battery charger/maintainer which puts out about 23 volts on a sunny day. The amperage and wattage are low but could this higher voltage damage the battery?

Thanks!

23 volts is a tad too high. You could probably get away with it because the solar panel produces miniscule currents but personally I would place a small resistor (eg. 62ohms) in series with the circuit to reduce the voltage.

2008-03-09 19:56:29 by Rupert8

Price: $29.99 $17.00

Works with automobile, motorcycle, tractor, boat batteries and more
Made of durable ABS plastic and amorphous solar cells
Built-in blocking diode to prevent reverse discharge
For indoor use--solar panel is not waterproof
Charges 12-volt batteries and creates 1.8 watts of energy

i have a short in my car battery. i probably do not have enough to have it fixed. i saw that they have solar powered battery maintainers that hold a charge in my battery. if i charge the battery completely, then use it, will it keep my car running all the time? im tired of having to jump it. its a 95 dodge avenger ES. i dontthink its computer powered if it matters.
ive already been through 3 batteries and altenators. im 90% sure its a short. so im wondering if this is an alternative until i can afford fixing the short. so how about some real answers because there is obviously a reason im asking, im not an idiot.

buy a BATTERY

2009-07-31 21:39:56 by Mike

My 2007 Suburban often spends all day at events where the constant opening and closing of the power hatch, running of inside lights, and running of the on-board computer kills the battery. If I remember to start it every few hours and run it for a bit them I'm fine, but this is a pain and when I forget then I need a jump.

I thought about various dual battery schemes, but would still be limited to what two batteries can supply.

So, I will buy a Honda eu1000i generator to power all of my other equipment and a battery charger or maintainer to keep the 'burb happy. But do I have to care which battery charger/maintainer I use? Some of them only deliver 1 amp which may not be enough to keep the 'burb charged - others may deliver too much or may get their internal charging algorithms confused by the fact that I am also discharging the battery at the same time? Not sure how to do this exactly, please advise.

http://www.sears.com/shc/s/p_10153_12605 _02871219000P?vName=Automotive&cName =Batteries+%26+Chargers&sName=Batter y+Chargers+%26+Boosters

2009-08-16 09:12:11 by Mike