Bird Brain 4391A Utility Vehicle User Manual


 
Bird Model 4391A Power Analyst
18
Battery Care With average use, the nickel metal hydride batteries in the
4391A will power the unit for 12 hours before needing
recharged. The 4391A will maintain rated accuracy until all
the decimal points light, indicating that recharging is
required. To recharge, connect AC power to the unit. To fully
charge the batteries requires approximately 16 hours. To
prolong the life of the batteries, it is recommended that you
periodically allow the batteries to discharge until the
decimal points light before recharging. If the batteries lose
the ability to hold a charge they should be replaced. See
Chapter 5 - Maintenance for important precautions
regarding static electricity when opening the housing.
WARNING
Use only NIckel Metal Hydride (NiMH) batteries that
have a minimum capacity of 4600 milliamper hours
(mAh). Do not install batteries that are not Nickel Metal
Hydride. Do not install NiMH batteries that have less
than 4600 mAh capacity. Failure to comply may result in
damage to the batteries, damage to the instrument, and
injury to personnel from battery chemicals.
CAUTION
Long-term storage of this instrument can affect battery
performance and reduce battery life. Do not store the
instrument for long periods of time without recharging the
batteries (refer to page 19). Failure to comply may result
in reduced battery charge and shortened battery life.