Motrec E-290GT, Operator And Maintenance Manual

Page: 17 / 61

Maintenance
- 17 -
BATTERY MOUNTING
A loose battery increases damaging effects of vibrations and is more prone to short out.
BATTERY DISCHARGE LIMIT
Discharging below a 20% state of charge cuts down the battery life and the number of cycles available.
At 20% state of charge, specific gravity of 6V battery should be 1180; and 1220 for industrial battery.
CHARGING AREA
Always charge battery in a well ventilated area set for and approved for charging.
Never leave a charger connected for more than 20 hours.
FREQUENCY OF CHARGE
When a battery is discharged to its 20% state of charge, it is best to charge immediately.
Batteries require a low current equalization charge (min 4 hours) at least every week, to equalize
battery cells, improve battery performance and life in number of cycles.
Never leave a charger connected for more than 20 hours.
STORAGE
Keep the battery from getting cold, it would loose its capacity.
Let the battery warm up before charging.
Charge batteries in “stored” vehicles every month.
DEFECTIVE BATTERY
Check specific gravity of each cell; if a cell is shorted, voltage drop may occur only when there is
current.