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Charging information for lithium batteries
4.3 CHARGING INFORMATION FOR LITHIUM BATTERIES
Lithium batteries should never be deeply discharged, as this will irreparably damage the
lithium cells. All lithium batteries should (if possible) always be stored with a medium charge.
If a battery is not used for a longer period of time, please do not fully charge it beforehand
- this places the lithium cells in unnecessary “stress” which can lead to a shortened service
life in the long term. If you have the choice when using the battery, we recommend not to
charge it completely, but always to use it in the medium voltage range. Of course, the battery
can be fully charged to drive long distances, for example - it is only technically best for a
lithium battery not to do so in order to really get the maximum performance and life out of
the battery. The lifetime of lithium batteries is given in charge cycles. Don’t think you are
“wasting” many charging cycles by recharging the lithium battery more often even though it
hasn’t “run out” - this is completely wrong! The indicated service life in charging cycles refers
to so-called full cycles. This means that if you discharge your battery by 50% and then fully
charge it again, this corresponds to ½ charging cycle. Charge twice, corresponding to one full
cycle. We recommend recharging a lithium battery with 25% residual charge up to approx.
75% state of charge.
For long distances the battery can of course also be fully charged - see above. During hiber-
nation or long storage of vehicles with lithium batteries it is absolutely necessary to recharge
them at least once a month up to approx. 60%. For lithium batteries, only use chargers
approved and recommended by the manufacturer. Charging with too high a charging current
to be able to charge faster can irreparably damage the lithium cells and, in the worst case,
lead to fi re.
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