Schauer JAC2024H User manual

Battery Chargers
Models: JAC2024H (24 volt) JAC4024 (24 volt) JAC2036H (36 volt)
JAC1742H (42 volt) JAC1548H (48 volt) JAC1372 (72 volt)
PLEASE READ all operation and safety precautions before using charger. Contact Schauer Battery Chargers
with any questions prior to operation.
The term battery will be used to reference a single battery or multiple battery pack connected in series or
parallel.
Caution! Safety precautions must be observed to avoid personal injury, electrical shock or battery explosion!
Confirm proper application of charger and battery pack voltage (ie. 24 volt charger with 24 volt battery pack)
Always check for proper electrolyte level in battery (do not overfill, acid may overflow during charging)
Charger’s power switch should be Off and unplugged from AC outlet before connecting to battery
Position charger as far from battery as DC cord will allow while charging. Hydrogen gas may escape from battery
during charging, do not position charger above or below battery while charging
Plug charger into a grounded AC outlet
Operate charger in an environment with proper ventilation
Charger must not be operated in a damp or wet environment
Use proper charge rate (amperage) for battery rated amp hour (Ah) capacity. Check with battery manufacturer
Do Not charge a frozen battery
Be sure your battery is not drawing any load from equipment or instruments when you are charging
oA current draw on the battery during charging may prohibit charger from switching into the
maintenance float mode, resulting in overcharging, gassing and low electrolyte levels. Contact
Schauer Chargers if your application involves a constant current draw for options.
This is a multi-stage automatic charger: Bulk charge →Absorption charge →Maintenance float
LED charging sequence indicator Lights:
Upper LED (Power): Red –AC power connected, Power switch On
Lower LED (Equalizer): OFF –Charger Not Connected / Connected and minimum battery voltage not sensed
Lower LED (Equalizer): Amber –Charging stages Bulk and Absorption - cooling fan active
Lower LED (Equalizer): Green –Battery charged, Charger in maintenance float mode
Flashing Red & Green LEDs: Safety Timer shut off function

Caution! This charger is intended for use with rechargeable Lead Acid type battery only: Flooded, Gel, AGM, SLA, VRLA
and SLI (starting / automobile). Use with any other type of battery may cause damage or explosion.
Charger Safety Features:
oReverse Polarity protection
oShort Circuit Protection
oCooling Fan
oOptional Grounding Screw on back of charger
oLow voltage turn-on (load sensing)
-Charger requires a minimum battery voltage to begin charging cycle. This protects against trying to
charge a dead or shorted battery. Lower LED would remain off when connected. Minimum voltage is
1/3 charger rated voltage (example: 24 volt charger, minimum battery voltage requirement is 8 volts)
oSafety Timer shut off
-If the battery is not capable of reaching the charger’s maintenance mode in an appropriate amount
of time, 16-18 hours, the charger will time-out and terminate its charging current output. Both
upper Red LED & Lower Green LED lights will flash. Charger will require to be manually reset when
this occurs. Turn charger OFF, wait 10 seconds and turn back ON. Check battery’s electrolyte level.
If flashing LEDs safety timer function repeats on next charge cycle, discontinue charging and have
battery checked. After many charge cycles and time a battery’s end of charge current requirements
increase and the charger may not switch into float mode and time out. A poorly maintained battery, a
battery with heavy sulfation or a shorted cell will effect charger switching into float mode.
-Note: Brand new battery (first 1-5 charge cycles) may exhibit safety timer shut off function.
Multiple new batteries operating as a single battery pack may require several charge cycles to
normalize to each other. Manually reset charger OFF then ON. Condition will cease and charger will
automatically switch to maintenance float mode after several initial charge cycles.
Charger is equipped with a final stage maintenance float mode. You may leave charger attached to the
battery for prolong periods of time and it will not overcharge the battery. Lead acid battery prefer to be in a
charged state. It is recommended to charge your battery after each use. Leaving the charger attached in float
mode will aid against sulfation build-up on the battery’s lead plates and maintain battery in a ready state.
When charger is turned off the LED lights may flash for several seconds as power dissipates from charger. If
AC power is interrupted by a power outage or other, the charger will resume its charge/maintenance cycle
when AC power is restored.
Flooded / Gel or AGM Switch: Choose proper lead acid battery type before connecting charger.
-Flooded: Battery with removable caps / distilled water can be added to electrolyte
-Gel/AGM: Maintenance free batteries, sealed / VRLA
Proper charge rate (charger amperage rating) must be used to prevent damage to battery. Contact battery
manufacturer for recommended charge rate. For a single battery or batteries connected in series (negative to
positive), the battery amp hour (Ah) capacity is that of a single battery. For batteries connected in parallel
(positive to positive and negative to negative), the battery Ah capacity is cumulative of all battery’s Ah.
Only batteries of same Ah rating, size and condition/age should be connected in series or parallel. Combining
batteries of different capacity, age or condition will result in an unbalanced charging of individual batteries in
the pack resulting in possible battery damage.

Caution! Charger operation, connections and proper electrolyte level should be checked routinely.
Proper electrolyte levels for Flooded (Wet), non-maintenance free sealed batteries:
Note: Use distilled/purified water only. Unfiltered tap water contains minerals that may cause build up on
lead plates of battery.
Confirm correct electrolyte level per your battery’s manufacturer instructions. Check electrolyte level
routinely to avoid exposing lead plates to air; this may cause irreparable damage due to oxidation to the lead
plates reducing the battery’s capacity. Do not fill to correct level prior to charging; this may cause overflow
during charging. It is best to fill battery several hours after charge cycle when the battery has cooled down. If
top of plates are exposed before charging, only add enough water to cover the top of the plates; top off level
after charge cycle and batteries have cooled down. Electrolyte gassing (bubbling) towards the end of charge
cycle is beneficial for the health of the battery. It keeps the electrolyte from stratifying and condensing in the
lower portion of the battery causing uneven charging of the plates. Prolonged gassing will lower electrolyte
level.
Care of operation:
-Battery charger must only be used for the purpose specified by the manufacturer.
-Wear proper eye and clothing protection at all times
-Someone should be within range of your voice when working with a battery & charger
-Do not operate the battery charger if housing or cables are damaged.
-Lay cables in such a way they are not in risk of damage or tripping.
-Position charger on secure surface to avoid falling over, keep out of reach of children.
-Do Not smoke or exposed to spark or flame while charging
-Do not drop metal tools or personal items across battery terminals causing shorts or sparking
-A qualified person familiar with the risks involved must perform service or repair
Caution! If you have any questions about proper charger application, contact Schauer
Battery Chargers before connecting or attempting to operate charger.
Charger Curve

Schauer Battery Chargers www.battery-chargers.com
3210 Wasson Rd., Cincinnati, OH 45209, 513-791-3030 [email protected]om
Limited Warranty
[This warranty is extended only to original end user retail purchasers.]
1. Subject to the terms and conditions herein, The Brookwood Group, Inc., d/b/a Schauer Battery Chargers
(“Schauer”) hereby warrants only to the original end-user purchaser (“Original Purchaser”) that its Products will be
free of defects in materials and workmanship for a period of two (2) years after date of purchase by the Original
Purchaser. In the event a Product is defective, Schauer, at its discretion, will either (a) repair the Product, (b)
replace the Product, or (c) refund the purchase price for the Product. Schauer “Products” include battery
chargers, test instruments, recreational vehicle accessories, and component parts thereof, in each case if
purchased in the original Schauer packaging and without alteration. This limited warranty is extended only to the
original end-user purchaser at retail and is not assignable.
2. This warranty only applies to Products that (i) are operated in accordance with their technical and operational
instructions, and (ii) have not been damaged or altered by repair or service not rendered by Schauer or by a
Schauer authorized repair station. This warranty is contingent upon proper storage, handling and implementation
of the Product and does not cover Products that have been subjected to physical abuse, electrical stress from
improper handling or implementations inconsistent with Schauer’s technical directions.
3. To obtain warranty repairs, the Product should be carefully packaged and delivered, postage or delivery charges
prepaid, to Schauer Battery Charges, 3210 Wasson Rd. Cincinnati, Ohio 45209, or to a Schauer authorized repair
station. If the Product is within the coverage of this limited warranty, and the Product is replaced or repaired, the
Product will be returned to End User at Schauer’s expense.
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CONSTITUTES THE SOLE WARRANTY TO AND EXCLUSIVE REMEDY OF THE ORIGINAL PURCHASER AND THE SOLE
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TO THE PRODUCT OR OTHERWISE WHICH EXTEND BEYOND THE SPECIFICATIONS PROVIDED IN WRITING BY
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