Service manual

Course # 1 Manual

Rev. 1/02 page # 5

Service & Parts Education

REPLACING WHEELCHAIR BATTERIES

Do you replace a set of batteries every time a customer says there bad?

Before you do replace a pair of batteries, make sure you have accurately

diagnosed the problem first.

Battery Testing Procedure:

1. Use your Digital Volt Meter to read the static battery voltage. A fully

charged set of gel batteries will read at least 25.6 volts and above.

2. If the batteries are not fully charged, try to recharge them overnight

before replacing them. Severely discharged batteries could take up to 10

to 16 hours to reach a 100% full charge. Severely discharged batteries

could also rise rapidly, and give the charger a false reading causing the

OEM charger to shut off too soon. If the batteries are too low for the OEM

charger to begin, remove the batteries from the battery boxes, and use a

12 volt charger (no more than 10 AMPS) on each battery for an hour.

Then put the batteries back into the battery boxes, and recharge them

overnight with the OEM charger.

3. Once the batteries are fully charged, perform a field load test or use

your programmer to check the Battery Quality Menu.

4. If the batteries are determined to be bad, replace the batteries. If the

batteries check out good, then your problem lies elsewhere. Check the

motors and the chairs electronics for further problems.

STOP!

BEFORE YOU REPLACE

YOUR NEXT SET OF

BATTERIES, READ THIS

INFORMATION