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June 3, 2022

Compact wall-mount 12 Volt 1.5A lead acid charger with precision switchmode power circuit

12 and 24 volt lead-acid chargers
48 volt sealed lead acid and VRSLA batteries 48 volt switchmode battery chargers
36 volt battery chargers 36 volt switchmode battery chargers
24 volt high efficency, high power lead acid battery chargers 24 volt switchmode battery chargers
Small lead acid car charger with desulfation functionside view of the 12V 1500mA lead acid charger

12 volt 1500mA, peak multistage charger with AC input. Connection to the battery with barrel connector or alligator clips. Suitable for all flooded and sealed lead acid technologies

This is a nice little 1.5 x 2 x 3.5 inch precision charger which uses switchmode technology rather than transformer technology. Switchmode makes it smaller, lighter, more efficient, and ensures a high degree of voltage regulation no matter what the AC input voltage is. This makes it particularly useful when the car is a long way from the AC outlet because it compensates for AC voltage drop in the extension cord.

With barrel connectorbarrel connector
Quantity 1-9 10-49 50-99 100-499 500+
  $22 $20 $18 $16 $14
with alligator clips12 volt 700 mA battery charger for lead acid batteies with barrel plug output
For charging 12V Pb-Acid batteries up to 1.5 amps. $19.50
Quantity 1-9 10-49 50-99 100-499 500+
  $22 $22 $18 $16 $14
 ZHJX002 adapters with a barrel connector input and screw terminal output For adapting the barrel connector version to screw terminals $2.50 each
Optional barrel plug adapter kitplugset see below $7.00
General Information
Model PST-P2012-A12A, PST-P2012-A12B
Function 12 Volt battery charger for lead acid, sealed lead acid, etc.
Type Wall mount battery pack Charger for R/C, Robots, motorcycles, bicycles, scooters and instruments.
ROHS ROHS compliant
Technical Information
Rated input voltage 90-264 VAC, 50/60 Hz
Battery type 12V nominal SLA, VRLA, Gel, AGM, or flooded battery
Input Frequency 50-60 Hz
Battery voltage 12 volts nominal
Battery size 0.7 AH to 20+ AH
Charging current 1.5 amps or 1500mA
Charger type Lead Acid Chemistry
Charging algorithm Constant current/constant voltage/float
Stage 1 constant current 1500 mA ± 100 mA
Stage 2 constant voltage 14.75 volts ± 0.25 volts
Stage 3 float charge 13.75 ±0.20 volts
"Charged" light turns on and float charge starts when the charge current is below 0.20 amps ±0.05 amps when the battery charge voltage is above 14 volts.
Style Desktop
Output power 20.7W maximum
Output voltage 14.75 volts maximum during bulk charge stage
Output options Alligator clips or 5.5 mm OD x 2.1 mm ID barrel. More barrel connectors available separately, see below
Weight 100 grams, 0.10 kg, 0.22 pounds, 3.5 oz.
Cooling Natural convection, no fan
Efficiency >80%
Size 84 x 45 x 36 mm, 3.3 x 1.8 x 1.4 inches
Environment -10°C to +40°C operating, -40°C to +70°C storage
Temperature rise <40°C rise on case under any line voltage and maximum rated load
Vibration, Impact 5mm, 50Hz, 600 Seconds, 1 meter drop 3 times
Protections Over Voltage Protection, Output current protection
Safety PSE, CE, TUV listed under specification UL1310 (ANSI 1310), Class 2 battery charger. CE marked, designed to EN60950, GB4946, UL1950.
MTBF 30,000 hours by MIL-STD calculation
HiPot, ESD Hi-Pot 3000 V, 1 minute, ESD 8000V
LED Indications   Power on, but no battery connected. or no battery detected Black
Charging Red
Charged/Float Charging Green
Charge Finishing Green Flashing
Reverse polarity Red and Green flashing

DC OUTPUT Connector

    5.5×2.1×10.5 S TYPE
Center Positive
barrel connector photo


    Center Positive center positive symbol
  • 2.35 OD x 0.7 ID Barrel
  • 3.0 OD x 1.1 ID Barrel
  • 3.5 OD x 1.35 ID Barrel
  • 4.0 OD x 1.7 ID Barrel
  • 4.75 mm OD x 1.75 mm ID Barrel EIAJ-03
  • 5.0 mm OD x 3.5 mm ID with center pin
  • 5.5 mm OD x 1.5 mm ID type 2 Barrel
  • 5.5 mm OD x 2.5 mm ID Barrel
  • 6.3 OD x 3.0 ID center pin Barrel
  • 6.0 OD x 4.4 ID center pin Barrel
  • 7.4 mm OD x 5.0 center pin ID Barrel
  • 7.9 OD x 5.6 ID center pin Barrel


OEM Battery Chargers Much lighter and smaller than transformer based chargers

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Universal Power Input OEM Power Supplies and OEM Battery Chargers Panel displays the rate of charge rate, operating mode, fault codes & charging complete.

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