ePOWER Battery Charger Manual

Charging A Dead Battery

The charger is designed to charge batteries with terminal voltage greater than 2.5Vdc.

If the battery voltage is lower than 2.5VDC then the charger must be switched to PROGRAM (Power

Supply) mode in order to charge. It is recommended to set the charge current to the lowest setting to

help prevent any possible overheating of the battery during charging.

Recharging a dead at battery requires extreme care and attention. It is recommended to recharge using

short frequent cycles rather than one long bulk cycle. Battery damage or failure may occur if the battery

is discharged deeply.

Understanding The Protection Features

De-rating Charging Current:

When the charger senses the environmental temperature is above 50°C, the maximum charger current

will de-rate to 1/2 of the value (A02 warning code will display). The charger will recover automatically

back to maximum charging current when the environmental temperature drops to below 45°C.

Over Temperature Shutdown:

When the charger senses the environmental temperature is above 60°C, the charger will shutdown. It will

recover automatically when the environmental temperature drops to below 45°C.

Battery Reverse Polarity:

When a reverse polarity is connected to the battery bank, Fault Code E03 on display will appear. In some

cases, the user replaceable DC fuse located near the DC Output terminals may blow and Error code E08

will display.

AC Input Voltage Protection:

The charger will shutdown when it senses the AC input voltage is outside of the operating range. A fault

code will display ‘E02’. The charger will recover automatically when it senses the AC input voltage has

returned back to the normal operation range.