Battery Charger - Benchmark BG Series User Manual

6.8 BATTERY CHARGER

If your BG series is equipped with an electric start it will also feature a
battery charging port (charging cord included on the BG11500E and sold
separately on other models. You can find the charging cord on our part store at
benchmark.midlandpowerinc.com or by calling our toll free support number). When
storing your generator for an extended period of time the battery will self-discharge,
which could cause permanent damage or even complete failure of the battery.
To prolong the battery life, it should be kept above 12.4 Volts (75%) charged while in
storage. A fully charged battery will read 12.6-12.7 Volts. To top up, plug the charger
into a standard 120V wall outlet and the charging port on your BG series (do not
charge longer than 10 hours at a time). This will slowly recharge the battery and
prolong its life.
1
1. Plug the charging cord into a 120V wall outlet.
2. Plug the other end into the charging port of the generator.
Note
The onboard electric start battery recharges while the generator is
running.
Do not charge for more than 10 hours at a time.
Check the voltage with a digital voltmeter and top up the battery every
two months while in storage. 12V batteries typically lose 5-15% per month
when not in use.
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BG SERIES