11.1 Battery maintenance
The CHASSIS battery is a sealed, metallic canister, lead-acid AGM battery, 12 VDC nominal. It will
charge and provide power across all operating temperatures, especially at extremes. Other
battery types, such as lithium-ion, are cold-temperature limited.
It is best practice to keep the CHASSIS plugged into a power source such as: wall, vehicle, or
solar. When not feasible to do so, a healthy battery that is disconnected from all loads will
typically maintain its charge for up to six months. Recharge the CHASSIS battery before use when
it has been left for six months or more without a charging source.
Battery life is a function of many variables, including number of charge cycles, depth of
discharge, and operating temperatures.
NOTE:
Before replacing the CHASSIS battery, collect all data from the DAQ.
Battery replacement procedure:
1. Unplug Detachable Power Cord (if present).
2. Unplug Green 4-Pin Terminal Connector.
3. Pull knob up.
4. Partially slide drawer out.
FIGURE 11-1. Battery drawer
GRANITE CHASSIS
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