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1.
Damage resulting from misuse, not maintaining the vehicle or not following the guidelines
within our user guide or using the vehicle for any kind of competitive sport.
2.
Accidental or deliberate damage.
3.
Damage due to private repair or alteration by user or unauthorised service centre.
4.
Failure to produce invoice or proof of purchase.
5.
Parts and components worn in normal use.
6.
Failure to register bike within 14 days of purchase.
7.
Failure to have your bike safety checked and the spokes tightened within 300 miles or three
months of purchase.
4.1
Battery maintenance and user responsibilities
4.1.1 Your Wisper bike is equipped with a powerful, high quality lithium ion battery. Lithium ion is
recognised as being the very best type of battery for electric bicycle use.
4.1.2 All lithium ion batteries must be well cared for to optimise useful life and range. It is the
responsibility of the bike owner/operator to ensure the battery is looked after properly.
Incorrect use or storage of your battery may cause damage and void your warranty.
4.1.3 It is not unusual for a well-maintained battery to last for several years. Your bike will feel less
powerful as the battery gets older, and the range will diminish.
A key point to remember when choosing a battery is to check the battery capacity (V x Ah =
Wh the battery’s capacity) i.e.16Ah x 36V = 576Wh. When such a battery loses 30% of its
capacity, it will still have nearly 400Wh left, still more than a new 36V 10Ah (378Wh)
battery. Choosing a larger battery not only gives you more power and range but is often
more economical in the long term.
4.1.4 The key to having a long-lasting battery is to look after it. This means never leaving your
battery fully discharged and always conditioning the battery when not in use by charging the
battery every 4 weeks when not in use.
4.1.5 If a battery is not cared for as per our instructions, it will not reach its optimum performance
and may not be covered by our warranty.
We reserve the right to check batteries claimed under warranty to ensure they have been maintained
as per our instructions.
