12V & 100Ah: This stands for 12 Volts and 100 Amp-hours. Think of the Voltage as water pressure and the Amp-hours as the size of the water bucket. It can give 1 Amp of power for 100 hours. Or, it can give 100 Amps of power for 1 hour.
Self-Discharge: Self-discharge is how fast a battery loses power when it sits on a shelf and is not used. A rate of \(<3\%\) per month means that if you store the battery away, it will still have most of its power after a few months.
Valve-Regulated (VRLA): This means the battery is sealed tight. It has a special safety valve. If the battery gets too hot, the valve lets gas out safely. This stops the battery from swelling or leaking.
Weight (30.5 kg): This is a heavy battery! Lead-acid batteries are heavy because they use lead plates and liquid (or gel) acid inside to store power. Make sure to lift wit