battery drains

Old 12-05-07, 12:18 PM
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battery drains

hi. the battery on my 87 ford ranger drains, so i have to keep it's terminals unplugged when it's not running. i'd like to test all circuits by removing fuses one at a time, while the battery is connected to either a light bulb or ampmeter/voltmeter. does anyone know how to do this? also, could a fauly relay be responsible? thanks
Old 12-05-07, 01:55 PM
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If you have access to a clamp on ammeter, you can clamp it directly to your positive cable and determine if you have a drain. You can do this to individual wires as well if you have a suspicion of one or more circuits. It may very well be the battery is bad and discharges on its own. Likewise a battery charge tester is invaluable in loading up a battery to determine if it is good or not. Most parts stores will gladly check your battery with theirs (and sell you a battery at the same time if warranted -- and some will install for free).

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