PROCEDURE 12 | MWD WHEELCHAIRS | ||
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C H A I R S
CHARGING BATTERIES (FIGURE 4)
WARNING
Never attempt to recharge the batteries by at- taching cables directly to the battery terminals or clamps. Use the recharging plug located ei- ther on the side/rear of the wheelchair frame or on the front of the joystick.
DO NOT attempt to recharge the batteries and operate the power wheelchair at the same time.
During use and charging, unsealed batteries will vent hydrogen gas which is explosive in the right concentration with air.
CAUTION
Always charge new batteries fully BEFORE initial use or battery life will be reduced.
NOTE: As a general rule, batteries should be recharged daily to assure the longest possible life and minimize the required charging time. Plan to recharge the batteries when it is anticipated the wheelchair will not be used for several days.
The range per battery charge using recommended bat- teries should be approximately 5 to 9 hours of typical op- eration. Extensive use on inclines or age of batteries may substantially reduce per charge mileage.
Description and Use of Battery Chargers
The charger automatically reduces the amount of charge from an initially high rate to a zero reading at a fully charged condition.
SHUTOFF PROCEDURE.
A.For Models RANGER IIBASIC and RANGER IISTANDARD
B.For RANGER II250 SERIES
There are some basic concepts which will help you understand this automatic process:
The amount of electrical current drawn within a given time to charge a battery is called “charge rate”. If, due to us- age, the charge stored in the battery is low, the charge
rate is high. (FOR MODELS RANGER IIBASIC and
RANGER IISTANDARD - this is indicated by the green light on the charger. Initially, the green light will stay illuminated
for a short period of time followed by a longer period of off time.)
As a charge builds up, the charge rate is reduced, and the following will occur:
A.For Models RANGER IIBASIC and RANGER IISTANDARD- the green light will stay illuminated for a longer period of time followed by a shorter off time.
B.For Model RANGER II250 SERIES - the battery charger rate decreases to a "trickle charge".
NOTE: If performing the charging procedures indepen- dently, READ and CAREFULLY follow the individual in- structions for each charger (supplied or purchased).
NOTE: If charging instructions are not supplied, consult a qualified service technician for proper procedures.
Required Items:
TOOL | QUANTITY | COMMENTS |
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Battery Charger | 1 | Supplied |
✪ Extension Cord | 1 | Not Supplied |
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✪3-prong plug, 15 ampere current rating; industrial type
Wheelchairs Equipped With
1.If necessary, remove the rear shroud. Refer to RE-
MOVING/INSTALLING SHROUDS - MWD WHEEL- CHAIRS in PROCEDURE 9 of this manual.
2.Attach the battery charger connector to the charger cable/battery harness.
3.Plug the charger’s AC power cord, or extension, into the grounded 120 VAC wall outlet.
4.Wait until charging is complete.
NOTE: Allow eight (8) hours for normal charging. Larger batteries (greater than 55
NOTE: RANGER IIBASIC and RANGER IISTANDARD ONLY
-If the charger operates for sixteen (16) hours and is unable to fully charge the batteries, an internal timer turns the charger off and begins to fast blink the green light.
NOTE: If the batteries need to be charged more often or take longer to charge than normal, they may need to be replaced. Contact an authorized dealer for service.
5.If necessary, install the rear shroud. Refer toREMOV-
ING/INSTALLING SHROUDS - MWD WHEEL- CHAIRS in PROCEDURE 9 of this manual.
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