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Japlar Schauer 24v 2 Amp Automatic Smart Charger JAC0891-34

Was: $56.46
Sale Price: $43.95
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Product InformationStore Part Number: JAC0891-34


Replaces: Soneil Son2404S

Protection provided: Reverse Polarity, Short Circuit, Over-Voltage, Over Current and AC Surge.

Soft Start and Stop; Starts and stops gradually. No sudden in-rush of current. This protects both the batteries and any other circuits connected to the charger. JAC0224

Schauer’s Battery Charger transforms the 115/230 VAC into 24 VDC at about 100,000 Hz (1667 times faster than conventional charger), which requires a much smaller transformer and thus results in a unit of smaller size, low weight and improved efficiency. The JAC0224 uses sophisticated electronic circuitry with microchips. All present day computers use switch-mode technology.

Stage 1: Constant Current Mode (CC)
The charger changes to constant current 2A. When the battery voltage reaches to 28.8V, the charging stage changes from (CC) Constant Current to CV (Constant Voltage) mode.

Stage 2: Constant Voltage Mode (CV)
The charger holds the battery at 28.8V and the current slowly reduces. When the current reaches at 0.5 C (C= Battery Capacity), this point called the Switching Point. The Switching Point is one of the great features of this battery charger that it can adjust the current automatically according to the battery capacity. Other chargers without microprocessors are not capable of adjusting the current automatically.

Stage 3: Standby Voltage Mode
The charger maintains the battery voltage at 27.6V and the current slowly reduces to zero. Charger can be left connected indefinitely without harming the battery.

If the battery voltage drops to 27.6V, the charger changes from any mode to Constant Current mode and restarts charging. The charging cycle will go through Stage 1 to Stage 3.

This charger typically ships with alligator clips, the AC cord is detachable so customer may adapt charger to power cords from foreign countries.


  • Totally Automatic Switch-Mode Battery Charger
  • Suitable for Sealed (AGM) and Wet Lead Acid Batteries
  • Suitable for use anywhere in the world.
  • Auto sensing input: 100 to 240 VAC 47 to 62Hz
  • Automatic Cut Off and then True Float. Can be left connected indefinitely without harming the battery.
  • Two color LED to indicate charge status
  • Mean Time between failures 30,000 hours
  • Zero Current Drain when AC power is off
  • Optimal 3 Step Charging
  • Built-in Mode Indicators
  • Spark Free Hook Up
  • 2 Year Warranty


Not for use with true Gel batteries.Schauer Fully Automatic Constant Current Electronic Charger, charges faster and more accurately than conventional chargers. Charge control is constant current charge to a constant voltage and then to a float standby. The float charge holds the battery at 100% ready state. The charger can be left on indefinitely without worry of undercharge or overcharge.

The Schauer charger can be used world wide; charger automatically accepts and operates on voltage range of 100 to 240 VAC and 50 or 60 Hz. The JAC Series charger will act as a power supply in conjunction with a battery hook up.

Tech Specs

  • Dimensions (LxWxH): 4.4 x 2.4 x 1.2 in
  • Weight: .9 lb
  • Shipping Weight: 2 lb
  • DC Output Amps: 2 A
  • Absorption Voltage: 28.8 V
  • Manufacturer: Japlar Schauer
  • AC Input Volts: 100-240 V
  • AC Input Volts Freq.: 50-60 Hz
  • Float Voltage: 27.6 V
  • Maximum Power Output, Continuous: 2 A
  • Manufacturer Part #: JAC0891-34
  • Made In: Asia

Reviews and Ratings

5.00 Average
5 Stars 2
4 Stars 0
3 Stars 0
2 Stars 0
1 Stars 0
Rated 5.00/5 Stars from 2 customer reviews.

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Perfect Charger for my generator
Pros: This charger stays on the emergency generator battery all of the time. It never seems to overcharge and is allways ready to use. Great product
Cons: none
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Written by on Apr 04, 2013. Ownership: Use regularly. Knowledge Level: AC/DC is more than a band — (90 of 164 customers found this review helpful
Works grrat
24 volt charger does just what I hoped it would
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Written by on Sep 09, 2019. Verified Purchase

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