The XS 800 has a fully automatic, four step charge:
Using the XS 800 gives your battery an optimum service life and operational reliability.
*) Back current drain is what drains the battery if the charger is connected without the power cord connected. XS 800's extremely low back current drain corresponds to < 1Ah per month. Many other chargers have 1Ah per day.
**) Ripple denotes the amount of interference there is to the current and voltage. A high current ripple heats the battery and shortens its life. A linear charger has a current ripple of 70 - 400% which is much larger than the maximum 5% for a modern sealed battery. Voltage ripple could harm other equipment, which is connected to the battery. XS 800's ripple is only 2%. The battery gains a long service life and there is no risk of damage to other electronic devices connected to the battery.