6
2.3
Battery care
2.3.1 Your Wisper bike comes with a high-quality lithium ion battery. All lithium batteries need to
be looked after to ensure many years of full use.
2.3.2 Recharge your battery after every use if possible. Keeping your battery charged extends its
life and your bike is always ready to go.
2.3.3 You do not have to “condition” your battery by charging and discharging before it’s first use.
This was the case with old lithium ion technology but is not necessary on modern batteries
2.3.4 Never leave your battery completely discharged. Voltage dropping below minimum for any
length of time will cause serious damage to your battery cells.*
2.3.5 Recharge your battery every month even if you are not using the bike. Most lithium Ion
batteries will continue to discharge even when the bike and battery are turned off (see
above). If your battery falls below minimum Voltage it may not be recoverable.*
2.3.6 Do not expose the bicycle or battery pack to fire, heat sources, acid or alkaline substances.
Do not submerge the battery in any liquid.
2.3.7 When leaving your bicycle during hot weather, always leave in a shaded well-ventilated
area.
2.3.8 For best results, always recharge and store the battery at room temperature.
2.3.9 Before unloading the battery from the bike, make sure it is turned off and unload the battery
using its handle.
2.3.10 Further information on user responsibilities and battery maintenance are included in the
warranty section of this manual.
* The most common cause of battery failure is the owner not keeping to points 4 and 5
above. This is the most common reason for customers having to replace batteries. This is
particularly noticeable in the spring when customers are using their bike for the first time in
the new year. We receive most calls regarding failing batteries during this period as this is
the time when batteries are not being used.
IMPORTANT
If your battery cells are damaged due the battery being left in a discharged contition, or
has not been recharged advised as per this manual your battery is not covered by our
warranty.
Battery safety
2.3.11
i. Never leave a battery connected to the charger or mains power over-night.
ii. Never recharge a battery outside, in damp conditions or in temperatures less then 0
degrees centigrade.
iii. Never open a battery case, try and fix the battery or give it to any one other
than a registered Wisper Stockist for maintenance. (Failure to comply will void the
warranty)
