Invacare electra - 8 Electrical System; 8.1 Electronics Protection System

Service Manual Invacare
®
Electra
As at: 15.04.02 Page 31
11 Test sequences - electrics / electronics
11.1 Checking the battery voltage
CAUTION:
• Risk of short circuit.Take care with tools.Do not bridge battery terminals
• Only use the gel batteries indicated in the spare parts catalogue as replacement batteries.
11.1.1 Hints for Testing:
• If the total voltage is below 24 V even though the batteries being charged, the battery contacts and the
guide pins and exterior connection sockets are to be checked for corrosion or damage.
• If the battery voltage falls below 23 V during operation, the power supply to the motors will be
interrupted and the status display on the operating unit will blink.
• Exact information on the condition of the batteries can be obtained by means of a capacity test.
This can only be performed by the manufacturer.
11.1.2 Checking total voltage of the batteries in non-operative state and under load
Check total voltage U of the batteries at the Scooter charging socket between
poles 1 and 2 by means of a Multimeter (measuring range 50 V / 25 V DC).
Checking total voltage
(charging socket)
Check Remedy
• Voltage below 24V:
Charge batteries.
See chapter 12.1 page:35.
• Voltage below 19V:
Battery fully discharged.
See chapter 12.1 page:35.
• Voltage is 0 V
Check fuses.
The main fuse is located in the
battery pack.
(chapter 10.1.5 page: 27)
• Voltage (U) falls off rapidly in drive
mode?
Carry out measurement with blocked
drive wheels and with lighting switched
on.
Charge batteries.
See chapter 12.1 page:35.
11.1.3 Testing the individual voltage of the batteries