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Appendix B: LI-ION BATTERIES GENERAL USAGE
INSTRUCTIONS
The following precautions should be observed when using Gasmet Li-ion batteries for GT5000 Terra.
Storage:
1. In order to avoid short circuits, handle batteries carefully. Always ensure that terminals are
insulated.
2. Prior to use, keep the battery at a temperature preferably not exceeding 30 °C.
3. Initial state of charge of batteries before storage should be between 15 % and 50 % of capacity
and is defined by taking into account:
1. The maximum consumption of electronic devices
2. The self-discharge of the cells (the higher the state of charge, the higher the rate of the
self-discharge)
3. A minimum of 5 % of state of charge is required at the end of storage to avoid any
'overcharge'.
4. If after storage, the battery voltage is low or even 0 V, the battery protection circuit has
probably gone into 'sleep mode'. In such case, reset the battery with Gasmet charger.
Use mode:
1. Your battery has been designed for a specific application. Do not use it for any other
application without the agreement of Gasmet.
2. Do not connect batteries in series or parallel. Irreversible damage can be done.
3. Observe correct polarities during installation and charging.
4. Use only a Gasmet charger designed for use with smart Li-ion batteries. Otherwise irreparable
damage to the battery electronics could ensue.
5. Do not heat above 70 °C. The batteries contain thermal fuses which could activate and make
batteries inoperable.
6. Your battery is designed with an electronic device to protect against overdischarge,
overcharge and short-circuiting between the terminals.
7. If you cannot discharge the battery, it may be overdischarged. Charge the battery for ½ hour
and check again.
8. If you cannot charge the battery, it may be overcharged. Discharge the battery and check again.
9. If the battery has been short-circuited, charge it to reset the electronics with the Gasmet
charger.
10. If the battery has been short-circuited, status of charge can be wrong. Charge the battery for
½ hour and discharge the battery in order to reset smart battery values.
11. If the battery still does not work, please contact Gasmet.
12. Do not apply pressure that will deform the batteries.
End of life:
1. After numerous cycles, it is normal to observe a decrease in the battery capacity.
2. Do not try to open or dismantle the battery since it would invalidate the warranty.
3. Do not dispose of in fire.
4. Recycle the battery by a specialist company.
Gasmet GT5000 Terra Instruction and Operating Manual
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