GPT-3000 SERIES - FLT Geosystems

2 Precaution when Charging or Storing BatteriesThe capacity of battery will be affected and its service life shortened in any of the following cases whileit is recharged, discharged or stored.1) RechargingFig. 1 shows how ambient temperature at recharging is related to charging efficiency or as affectingdischarge capacity. As seen from the figure, charging at normal temperature is best, and theefficiency decreases as the temperature rises. It is best, therefore, to always recharge the battery atnormal temperature to obtain full use of battery capacity and enjoy maximum operation per charge.And the service life of your battery will be shortened if it is frequently overcharged or recharged athigh temperature.Note:0.1C charge means that the battery is recharged with 0.1 -time current as against itscapacity.2) DischargeFig. 2 shows discharge temperature characteristics. Discharge characteristics at high temperatureare the same as those at normal temperatures. The battery is likely to have reduced dischargecapacity as well as lower discharged voltage when discharged at low temperature. And the servicelife of your battery will be shortened if it is greatly overcharged.Note:1C discharge means one with 1 -time current over battery capacity.3) StorageSee Fig. 3 for how storing period at different temperature levels is related to the remaining capacity.The battery will lose its capacity as storage temperature rises and the storage period increases.This does not mean, however , that the battery performance is damaged when the battery is stored.The battery, reduced in capacity, will be restored once it is recharged. Always recharge your batterybefore use. And recharge and discharge the battery 3 or 4 times to restore its capacity if it has beenstored for a long period or at high temperature. Storing at high temperature can adversely affect theservice life of your battery.Your battery has been fully charged before leaving the factory, but its capacity may be affectedconsiderably when it takes several months to reach you, if it is stored at high temperature area orpasses through a high-temperature region. Then, the battery must be recharged and discharged3~4 times to fully restore its capacity.And the battery should always be stored at normal temperature or lower if it will not be used for anylong period. This helps your battery have a longer service life.APPENDIX-3