Forest, Forest Narrow
2012-12
Page 25
2.20 Batteries
The standard for your electric wheelchair is two closed, 12 V/70 Ah AGM batteries. The
batteries used with your electric wheelchair are drive batteries which only attain full capacity
after a few charging and use cycles.
If the batteries loose their power after long usage, or if they are damaged, get them both
replaced by a specialist dealer only.
We accept no liability for damage caused through using other types of batteries.
If the batteries are opened, all manufacturer liability and all claims will become void.
Do not use the batteries at temperatures below +5°C or above +50°C (the ideal is: +20°C).
2.21 Battery charger
To charge the batteries, only use the battery charger supplied - IMPULSE S (8 A).
For the user instructions of the battery charger you can refer to the manual of the Impulse S
that is delivered with your battery charger.
2.22 Charging the batteries
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CAUTION:
Risk of injury - Only use the battery charger supplied to charge
batteries.
As the IMPULSE S (8 A) charger aligns the charge curve with the AGM batteries' charge
level, you can recharge your wheelchair after each use. This avoids any aggressive battery
charging and the "memory effect".
Recharge the wheelchair, at the latest, when the charge indicator on the operator control
goes into the red zone. If, despite this, you continue driving, eventually only the last red diode
lights up and flashes continually, indicating that the batteries are nearly flat. If you disregard
this warning signal, too, an error message will shortly appear indicating that the batteries can
no longer provide power for driving. The batteries should therefore be charged before these
error messages appear, using the supplied battery charger IMPULSE S (8 A). Avoid the
batteries becoming drained, in any case.
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FIRST USE
First put the plug of the battery charger into the wall socket. After an LED combination has lit
up, the charger switches to STANDBY. Both LEDs (green and yellow) are active.
Next, connect the charger cable with the three-pin plug to the loader socket on the electric
wheelchair's operator control. Once connected to the batteries, the charger automatically
begins charging. Now only the yellow LED is active.
When charging is complete, the yellow LED goes out and the green LED comes on. Now
remove the charger cable from the operator control. The charger switches back to STAND-
BY mode (yellow and green LEDs active).
If the charger cable is not removed, a tiny current will keep the batteries topped up (trickle
charging).
If you decide not to use your electric wheelchair for an appreciable period, you must
nevertheless recharge it regularly to keep it in a running condition ready for immediate use.
The manufacturer accepts no liability for damage caused by improper charging.
For further information, please refer to the user instructions provided with the charger.
