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May 24, 2023 · With your multimeter leads connected to the battery, press the starter button and hold it for five seconds and note the lowest voltage. It shouldn’t drop below 9.6 volts for either a lead-acid or lithium-ion battery. If it does, that’s another indicator that the battery is losing capacity and getting weak.
May 29, 2020 · If you are using a charger, the light will indicate the battery is charged (hopefully). Once your battery is charged, you’re now ready to start testing your motorcycle charging system! Test the voltage of the battery using your multimeter. If your voltage is at or above 12.4V — you’re good.
- Step 1. Check to Make Sure You Actually Have A Mechanical Problem
- Step 2. Once You Verify You Have A Problem, Make Sure It’S A Battery Issue
- Step 3. Perform A Standing Voltage Test
- Step 4. Perform A Cranking Voltage Test
- Step 5. Perform A Current Draw Test
- Step 6. Perform Your Repair
- Step 7. Troubleshoot The Cause of The Problem
Is your sidestand up? Is your clutch pulled in? Often on modern bikes there are electrical switches that will not allow a bike to start if these two conditions are not met. Is the bike’s key in the ignition position? These not battery problems, but they will mimic the problems a bad battery displays.
Mechanics never describe a starting problem as “not running.” Starting issues are either “no crank” or “no start.” If the bike’s starter sounds like it’s turning over the engine at the appropriate speed, odds are good your no-start condition is not a bad battery. Though your bike’s electrical system is pretty complex, the starting system really is ...
What we're about to discuss holds true for standard lead-acid and AGM (absorbed glass mat) batteries. Batteries of a different construction type may well have different testing procedures and specification. (Lithium batteries spring to mind immediately as a battery that has a different usage and test scenario. If you've got one, refer to your batte...
You can perform a test with the battery under load (working) to get an idea of the current flowing through it. Note that this isn’t the “right” way to do this, but it’s another clue to help you confirm or deny your battery’s health. Hook up your DVOM in the same manner you did for the standing voltage test, and have an assistant thumb the starter. ...
If you have a load tester (a "toaster," so named because electrical energy is converted to heat, making the device quite warm when in use), now is the time to use it. Performing current tests is largely dependent on the style of tester, so I will refer you to the instruction manual for your tester. These are generally more progressive than the “go/...
If the battery was weak, charge it and perhaps look into why it might be weak. If the battery was bad, replace it. If you charged the battery, re-check it!
At some point in your testing, you’ve likely failed one of these tests. If you have not, your starter may be drawing an unacceptable amount of current, or you may have bad or corroded battery cables. (If you know how to do it, a voltage drop test should be the next test you perform.) Don’t overlook relays, switches, wiring, and solenoids in your se...
Place the red wire from your multimeter to the positive terminal on your battery. Check the voltage reading. A good, charged battery should read around 12.4 DCV. A battery with a lower reading may need to be charged or may be dead. If the battery is good, turn on your bike, start the engine, and let it idle.
May 12, 2015 · Testing a battery tender is easy: hook it up to a known good battery, connect a voltmeter across the battery before, and during the tender's connection to the battery: measure the battery's voltage without, then with the tender. The battery, if known good, should read around 12.6-12.8 Volts, without the tender connected.
If a low voltage indicates that the battery needs to be recharged, remove it from the motorcycle and connect the battery to the charger: the + (red) wire to the positive terminal and the – (black) wire to the negative terminal. Check that the connection is correct (+ to + and – to -) and that the clamps give a good contact.
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How do you test a motorcycle battery?
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How to charge a motorcycle battery?
Set the multimeter to the DC Voltage setting. Connect the leads to the battery terminals and determine the readout. A healthy and fully charged AGM battery should have a readout of around 12.7-13.6 volts. A slightly used battery with a capacity between 75% and 100% will have a readout of about 12.5 to 12.8 volts.
