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Operating Instructions

6

01056G

b

Charger is not plugged into a live AC outlet.

c.

Fault in Wheelchair Wiring.  Poor or open
connections in the wheelchair wiring that
connects to the batteries; corroded
terminals, loose or worn plugs and
receptacles, loose or worn fuseholders.
(Have your dealer repair the wheelchair).

d.

Battery connections in wheelchair wrong
(reverse polarity).

e.

One or both batteries no longer serviceable
(voltage below 13 volts for a 24 volt system).

If the charger turns off before the batteries are fully
charged, it indicates one of the following:

a.

Charger internal thermostat turned the
charger off due to overheating because
charger ventilation openings are blocked.
After the charger has cooled down to a safe
temperature, it will automatically restart.  If
the charger repeatedly overheats, it may be
malfunctioning.

b.

The AC power was interrupted during
charge.

c.

The DC cord charging plug accidentally
disconnected during charge.

d.

Fault in Wheelchair wiring.  The wheelchair
charging circuit has high resistance,
corroded or loose connections; loose or
worn wheelchair charging receptacle, loose
or worn wheelchair fuseholders.

e.

The battery has been allowed to sulfate,
Charge the battery no less frequently than
once every three days when the wheelchair
is lightly utilized.  Once sulfation is allowed
to take place, it may be partially reduced by
returning, temporarily, to daily charging.

The decrease in wheelchair range where the chair
loses power earlier and earlier in the day indicates
one of the following:

a.

The electrolyte level in conventional liquid
electrolyte lead-acid batteries was allowed
to drop below the top of the battery plates.
Add distilled water to just cover the tops of
the plates immediately upon discovery and
fill to the proper level with distilled water at
the completion of the very next charge cycle.
Battery capacity lost in this manner is
permanent and is not recovered with
additional charge cycles.

b.

Use of the wheelchair before the batteries
have been fully charged and the charger
turns off, shortens battery life and hastens
the onset of this reduced daily range.
Battery capacity lost in this manner is
permanent and is not recovered with
additional charge cycles.

c.

This is the normal wearout process for all
types of deep-cycle motive power batteries.

The charger operates through 14 hours before
tuning off.  The YELLOW charge light turns off and
the RED fault light comes on.  This indicates one of
the following:

a.

Batteries of higher than 85 amp-hour
capacity (20 hr. rate) can require more than
14 hours to charge.

b.

New batteries (5 cycles or Less) can require
more than 14 hours to charge.

c.

Very deeply discharged batteries (100%
discharged) can require more than 14 hours
to charge.

d.

Several failed cells in the batteries that do
not allow the charge rate to taper below 4
amps.

Summary of Contents for 13820 24EL8

Page 1: ...racteristics are adjustable to charge gel cell and sealed or conventional replaceable liquid electrolyte deep cycle lead acid batteries Different charge characteristics are selected by a switch on the front of the charger Patented electronic circuit monitors battery state of charge and automatically turns charger off when the batteries reach full charge Line voltage compensation produces consisten...

Page 2: ...n cooled design requires an unobstructed flow of cooling air for proper operation Keep all charger ventilation openings at least two inches 2 5 08cm away from walls and other objects Do not allow clothing blankets or other material to cover charger DO NOT place under bed WARNING CHARGERS CAN IGNITE FLAMMABLE MATERIALS AND VAPORS DO NOT USE NEAR FUELS GRAIN DUST SOLVENTS THINNERS OR OTHER FLAMMABLE...

Page 3: ... cord is disconnected CAUTION MAKE SURE THE BATTERY PACK IS A 24 VOLT 12 CELL SERIES CONNECTED 28 85 AMP HOUR 20 HR RATE RECHARGEABLE DEEP CYCLE BATTERY SYSTEM THE GEL CELL AND SEALED DEEP CYCLE BATTERY SETTING CHARGES TO A MAXIMUM ON CHARGE VOLTAGE OF 2 37 VOLTS PER CELL THE REPLACEABLE ELECTROLYTE DEEP CYCLE BATTERY SETTING HAS AN ON CHARGE VOLTAGE OF AT LEAST 2 50 VOLTS PER CELL VISUALLY CHECK ...

Page 4: ...es are as charged as they are capable of being and turn off When the batteries will no longer perform as desired they should be replaced Charger is equipped with a temperature sensor which automatically turns charger off if it overheats Should charger turn off before the batteries are fully charged check to be sure all ventilation openings are free from obstructions After charger cools down to a s...

Page 5: ...ent excessive self discharge Keep battery terminals reasonably tight PERSONAL PRECAUTIONS 1 Someone should be within range of your voice or close enough to come to your aid when you work near a lead acid battery 2 Have plenty of fresh water and soap nearby in case battery acid contacts skin clothing or eyes 3 Wear complete eye protection and clothing protection Avoid touching eyes while working ne...

Page 6: ...d to take place it may be partially reduced by returning temporarily to daily charging The decrease in wheelchair range where the chair loses power earlier and earlier in the day indicates one of the following a The electrolyte level in conventional liquid electrolyte lead acid batteries was allowed to drop below the top of the battery plates Add distilled water to just cover the tops of the plate...

Page 7: ...1 CASE ASSEMBLY 16246S 1 TRANSFORMER ASSEMBLY 12245S 1 ELECTRONIC TIMER ASSEMBLY 13811S 1 AMMETER 10 AMP 14308S 1 CONTROL CABLE ASSEMBLY 15184S 1 SWITCH SLIDE SPST 125 VAC 6 AMP 14341S 1 THYRISTOR ASSEMBLY 04275S 2 BUSHING INSULATOR 6N3 4 FOR CORDSETS 14444S 1 CORDSET AC 18 3 102 14421S 1 CORDSET DC 14 2 108 BLACK RED POWERPOLE 14422S 1 CORDSET DC 14 2 108 YELLOW WHITE POWERPOLE 14538S 1 CORDSET D...

Page 8: ... completed with a reasonable time after receipt of defective items This warranty does not cover any semiconductor parts such as diodes which are vulnerable to electrical overloads beyond the control of Lester Warranty on parts not manufactured by Lester which include but are not limited to timers and ammeters is limited to the period specified in the original manufacturer s warranty This warranty ...

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