WhisperPower
Lithium Plus 12 V 210 Ah 340 Ah
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5. Battery use
5.1. General information
Warning! Always use an external Disconnect device.
Warning! In case of an undervoltage shutdown, the charging current must be very low
until a safe voltage is achieved.
Warning! Follow the safety guidelines and measures of chapter 3
Caution
!
Charge the Lithium battery before use.
5.2. Charging
Warning! Never charge the Lithium battery with a charging current larger than 1C.
Warning! Stop charging in case the Lithium battery switches into alarm mode. (the
protection relay will switch off)
Caution
!
Charge before use
Caution
!
Disconnect the charger from the Lithium battery if it is not used for a long time.
Caution
!
To preserve the lifespan of the Lithium battery, use a charger approved by
Whisper Power.
1. Connect the charger to the Lithium battery as described in paragraph 4.6.
2. Charge the Lithium battery in case of an under-voltage shutdown or if the state of charge
drops below 20% to preserve the lifespan of the Lithium battery.
5.2.1. Charging rate
Whisper Power Lithium battery can be charged in approximately 1 hour. Displayed in Table
7 are the charge times for the Lithium battery at different charge currents. Always use the
indicated charge current and end of charge voltage during charging.
Charging rate
Time
Change current
Maximum
1 hour
1C (210A)
Endurance lifecycle
3 hours
C3 (70A)
Table 7. Charging rates at different charge currents
