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200.5 Routine Battery Inspection and Maintenance
Sealed Lead-Calcium Batteries
Lead-Calcium cells are the most common type of battery used today in standby equipment. By design it is as
maintenance free as a battery can be. It is recommended, however, that some simple steps be taken to increase
system life and maximize reliability:
A) A quarterly visual check of the batteries should be conducted to look for deformities in the cases and terminal corro-
sion. Any defective batteries should be replaced. All corroded terminals, regardless how slight, are to be cleaned and
retightened at once to prevent failure of the entire battery bank.
B) Once a year, all battery connections should be checked for tightness and re-tightened if necessary.
200.6 Battery Replacement Procedure
WARNING:
Always use the same quantity and type of battery as replacements.
Substituting batteries not supplied by the Manufacturer will void the UL listing of the system and may cause equipment
failure. To ensure the superior performance of your LG inverter system and to maintain proper charger operation,
replace spent batteries only with cells having the same part number, voltage and ampere-hour rating as the original
batteries.
1) Follow the proper shut down procedure as described in Section 200.1.
2) Disconnect the battery string beginning with the white inter-cell connectors followed by the red (B+) and black (B-)
connectors.
3) Remove the batteries from the cabinet.
4) Install new batteries following the instructions outlined in Section 106.2.
200.7 Battery Disposal
WARNINGS:
• Do not dispose of batteries in a fire, the batteries could explode.
• Do not open or mutilate batteries.
• Released electrolyte is highly toxic and harmful to the skin and eyes.
CAUTION: Batteries contain lead. Many state and local governments have regulations about used battery
disposal. Please dispose of the batteries properly.
200.4 Replacement Fuses
DC fuse:
BATT. (+) INPUT
For LG125S, R & T,
LG250S & LG250SI
1) Bussmann MDA-10-R
AC Fuse:
120V OUTPUT
For LG125S, R & T
0.6A, 300V Time Delay
1)Bussmann GMF-6/10
2) Littlefuse LMF-6/10
For LG250S, LG250SI
2.8A, 300V Time Delay
1) Bussman GMF-2-8/10
2) Littlefuse LMF-2-8/10
AC Fuse:
277V OUTPUT
For LG125S, R & T ,
LG250S & LG250SI
1.6A, 300V Time Delay
1)Bussmann GMF 1-6/10
2) Littlefuse LMF 1-6/10