Low range or cutting out. Wisper 705eco

Step 2: If battery charges correctly then test customers battery charger as described in the main manual and replace charger if faulty

Step 3: If a charger of known performance is not available then test customer’s charger as described in the main manual to ensure it is not the cause of the problem and then try charging the battery

Step 4: If the battery will still not charge then remove the fuse from the fuse holder at the top of the battery and test as described in section 5 of the manual. If faulty replace with correct 5 or 10 amp fuse and try charging again.

Step 5; If problem persists then return the battery and charger to Wisper service for further investigation.

Low range or cutting out

Step 1: Obtain description of problem and history from customer.

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Step 2: Check external factors affecting range from the annexe of this manual and discuss with the customer if these are likely to be the cause of the low range.

Step 3: Discuss with the customer how often the battery has been charged and what is the maximum time it has been left between recharges. If left for more than 2 months then the battery is likely to have incurred damage that will not be covered by the warranty.

Step 4; Measure output voltage of the battery as received for reference purpose.

If less than 30 volts then return battery to

Wisper for further investigation

Step 5; Check bike overall condition (if available) for items described in the annexe and correct / adjust as necessary if any faults found.

Step 6; Check customers battery charger is delivering the correct voltage as described in the main section of the manual. If not then repair or replace and work on assumption that the charger is the likely cause of the problem

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Step 7: Charge the battery using either the customer’s charger if considered serviceable or a charger of known performance. When fully charged measure the voltage and check it is approx 41.7 volts.

Step 8; If greater than 41 volts then road test the bike / battery and discuss performance and other findings with customer

Step 9; If less than 41.0 volts when fully charged then consider trying a second charger.

Step 10; If still less than 4`1.0 volts or any doubts remain as to the range of the battery then return the battery to Wisper service for a full capacity check as this is the only way to accurately quantify the capacity. If found to be less than 75% of the rated capacity and it is less than two years old and has been charged on a regular basis as described in the user manual it will be replaced under warranty

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