How to find out if there is any juice left in motorcycle battery to jump start?
Check Your Lights
- The battery indicator will be on when there are any issues with the battery, like a faulty connection or low voltage.
- If your battery is drained or dead, the headlights and backlight on the instrument panel will likely be dimmer than usual or may not work at all.
Check Your Battery’s Voltage
If the battery is completely dead (literally zero V), there’s no use trying to jump start it, so check the voltage first.
- If you have a voltmeter or multimeter, switch the setting to DC, and place the leads on the positive and negative terminals of the battery.
- A good voltage (V) reading depends on the size of your battery. For a 12-V battery, a full charge is 12.66 V, and 75% charge is 12.45 V. Anything below this may not be able to start your motorcycle—especially for modern, fuel injected motorcycles.
If you’ve determined that your battery is undercharged but not totally dead, you can try jump starting it. If your battery is dead you cant do anything.
There are four ways to start a motorcycle with a dead battery—with and without jumper cables:
- Using another motorcycle
- Using a car battery
- Using a portable battery jump starter
- Push starting