Deka Solar - Troubleshooting Common Battery Issues; Battery Overheating During Charge; Battery Not Supplying Power

8
TROUBLESHOOTING
1 Malfunctioning Charger Equipment 1 Repair or replace charger equipment
2
Charge Controller / Inverter voltage
2
Adjust voltage settings per battery
settings out of specification manufacturers recommendations
3 Defective or weak cell(s) 3 Replace problem battery
4
High resistance connection within
4
Check for hot wires, cells, intercell
battery
connections, charging cables. Repair
or replace defective component(s)
5 Low electrolyte level 5
Add water to moss cover when
battery is in discharged state
Battery Overheats During Charge
1
Electolyte puddle on the floor
1 Replace cracked battery
Cracked or broken jar(s)
2 Cell missed when watered 2 More careful attention when watering
3 Defective or weak cell(s) 3 Replace problem battery
4 Frequent overcharge 4
See items 1 & 2 in
“battery overheats during charge”
5 Battery not regularly watered 5 Water battery regularly
Low electrolyte
1 Grounds in battery 1 Clean battery
2 Battery used beyond its useful life 2
Replace battery with equal or higher
capacity battery
3
Weak, leaking or defective cell(s)
3 Replace problem battery
in battery
Unequal Cell voltages
1 Battery not fully charged 1
Charge battery until electrolyte
specific gravities are within specification
2
Weak, leaking or defective cell(s)
2 Replace problem cell(s)
in battery
3 Ground or shorts in battery 3 Remove grounds or shorts
4
Battery used beyond its useful life
4
Replace battery with equal or higher
capacity battery
5 PV Electrical system problem 5 Troubleshoot PV electrical system
Verify charge controller / Inverter
charge settings are within
6 Battery undercharged for long period 6
recommendations. Recharge battery
of time and now sulfated
until battery is at full state of charge.
Perform discharge test.
Battery not able to supply power as
when initially installed
1
Temperature compensation not
1
Verify temperature compensation is
present or not working installed and working correctly
Battery charge voltage readings
do not change during ambient
temperature variations
SYMPTOMS POSSIBLE CAUSES REMEDY