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Recharging My Battery
11-09-2008, 12:08 PM
Post: #1
Recharging My Battery
I have a 1995 Mitsubishi Expo.
I'm planning on buying a trickle charger for my car battery. How often should it be used or should it just be left connected to the battery for the period the car is out of service(like 10 months)?
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11-09-2008, 12:59 PM (This post was last modified: 11-09-2008 01:04 PM by Rupe.)
Post: #2
RE: Recharging My Battery
For long term storage what you want is a "float" charger or "maintainer" which is slightly different than a trickle charger. It can be left connected forever without harm. The idea being that it senses the state of charge and adjusts automatically to conditions rather than just a low level constant charge, which will eventually boil off the electrolite and leave you in a bind.

Be aware that some units will not charge a battery from totally dead so if you want something usefull in the garage over the years find one that will do a full charge too. IOW, a multi-purpose item.

Don't listen to the sales people. Read the package and buy something specifically with the word "float" or "maintain" on the lable.

Also be aware that some of the smaller units plug into the lighter, which handy but is no good if your lighter goes off with the key.
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11-09-2008, 06:05 PM
Post: #3
Where Can I Buy It?
Auto Zone? Pep Boys?


Rupe Wrote:For long term storage what you want is a "float" charger or "maintainer" which is slightly different than a trickle charger. It can be left connected forever without harm. The idea being that it senses the state of charge and adjusts automatically to conditions rather than just a low level constant charge, which will eventually boil off the electrolite and leave you in a bind.

Be aware that some units will not charge a battery from totally dead so if you want something usefull in the garage over the years find one that will do a full charge too. IOW, a multi-purpose item.

Don't listen to the sales people. Read the package and buy something specifically with the word "float" or "maintain" on the lable.

Also be aware that some of the smaller units plug into the lighter, which handy but is no good if your lighter goes off with the key.
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11-09-2008, 07:49 PM
Post: #4
RE: Recharging My Battery
Any of the major chains should have something available, either in stock or special order.

Make a few phone calls and I think you will be amazed at the price spread between different suppliers.

BTW, most of these units will be rated at 1 - 3 amps so a full charge will be slow, but your main purpose is not speed here and this can also double to keep your lawn tractor, motorcycle, or other power equipment charged up in the future.
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11-11-2008, 07:45 PM
Post: #5
RE: Recharging My Battery
I have just contacted PartsAmerica.com, having gone to an AutoZone store and contacting Pep Boys on-line. None of them are familiar with a float/maintainer charger. Any suggestions?




Rupe Wrote:Any of the major chains should have something available, either in stock or special order.

Make a few phone calls and I think you will be amazed at the price spread between different suppliers.

BTW, most of these units will be rated at 1 - 3 amps so a full charge will be slow, but your main purpose is not speed here and this can also double to keep your lawn tractor, motorcycle, or other power equipment charged up in the future.
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11-11-2008, 11:35 PM
Post: #6
RE: Recharging My Battery
Battery suppliers and power equipmeny shops deal in these WAY more often because of seasonal use. You might also try a motorcycle / ATV dealer. Those are also seasonal use vehicles with similar needs.

Many of these look like a cell phone charger with clips on the end of the wires. They are rather small for the most part.
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11-15-2008, 01:49 PM
Post: #7
RE: Recharging My Battery
I found a site and a charger like the one you described: http://www.ineedparts.com/ for $42.50. Is this 12-volt charger one that will work? How is it installed?
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11-15-2008, 01:58 PM
Post: #8
RE: Recharging My Battery
Yes, something like that is suitable for long term use. Installation instructions are there on thst site if you click for more details.

For indoor use (garaged?) just clip the leads to the battery terminals and plug it into a wall socket. For outdoor use you can simply tie or tape it to something under the hood (away from road splash) and feed the plug to someplace convenient so you can close the hood.

Either way make sure anyone who may need to move the car knows to unplug it fron the wall socket first .
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07-26-2010, 10:22 PM
Post: #9
RE: Recharging My Battery
(11-09-2008 12:08 PM)praglen Wrote:  I have a 1995 Mitsubishi Expo.
I'm planning on buying a trickle charger for my car battery. How often should it be used or should it just be left connected to the battery for the period the car is out of service(like 10 months)?

This is the instructions :

Step 1
Open the battery's vent caps to check the electrolyte level in each cell. Add distilled water to the bring the level up to the bottom of the fill hole if necessary. If your battery doesn't have removable vent caps, it is maintenance-free and you should skip this step.

Step 2
Use a trickle charger that matches your battery's voltage output. Most cars use 12-volt batteries, but check the battery label or your vehicle's owner's manual to be sure.

Step 3
Attach the charger's clamps directly to the battery terminals if the charger has alligator-style clips. Clamp the charger's red (positive) cable to the battery's positive or "+" terminal and the black (negative) cable to the battery's negative or "-" terminal.

Step 4
Plug the AC adapter into a 110-volt receptacle and turn on the power switch. If your charger uses a solar panel to provide current, put it where it will be exposed to light for most of the day.

Step 5
Leave the trickle charger connected while the battery is not in use to keep the battery's charge topped up.
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