November 4, 2025

DC Input DC-DC Heavy Duty Industrial and Military Grade 12V to 12V Lead Acid Battery Charger 30Amps. 5 year warranty.

24V to 12V DC/DC battery charger, heavy duty industrial and military

5Amp Heavy Duty, Industrial, Marine, and Military DC/DC chargers

30A 24V lead acid charger with 12VDC input

These chargers are high efficiency power converters (switchmode), designed for the charging of of 24 volt lead acid batteries in 12 volt vehicles, marine, and cell tower applications. These are attractive, reliable, robust DC to DC battery chargers with high power output. They are relatively immune to vibration and shock. They and come in three versions, heavy duty, water proof and military grade. Designed specifically to work in Day Cab HVAC transport vehicle applications.

These converters have common negative, so they are not fully isolated, but can be used for almost all 12 volt applications. They feature a spark-free connection, available wide temperature range (-40°C to +55°C) and 3 year warranty.

DC DC Converters	IP66 Waterproof 30 Amp DC DC Charger	Water Proof, ruggedized and wide temperature range 30 Amp DC DC Charger	Military Grade COTS MIL461F and MIL810G available, call for price 30 Amp DC DC Charger
Part Number and Price	PBCD805W-12-24 $1395 Allow up to 45 days for manufacturing	PBCD805WX-12-24 $1844 Allow up to 15 days for manufacturing	Call for price
Input Voltage	10.5 to 16 VDC
Max Input Current at Full Load	90A at 10.5VDC input
Output Voltage	27.2 VDC For charging 24V lead acid batteries
Max Output Power versus input voltage	Output amps = Vin/Vout * 60 amps
Duty Cycle	100%, 24 hours a day
Type of Battery Charged	Standard SLI, deep cycle lead acid, VRLA (valve regulated lead acid), AGM and Gel Cells
Low Voltage Input Alarm	10.5V
Output Overvoltage Crowbar	16.0V ± 1V
Output current limit?	Yes, voltage fold-back to keep current within range
Operating Temperature Range	-25°C to +40°C	-40°C to +55°C	-40°C to +55°C
Annunciation	Dry contact relay indicates output failure Audible & visual indicators for constant current, low input voltage, low output
Humidity	0-95% Relative Humidity
Line Regulation	<±0.05V
Load Regulation	<±0.05V
Switching frequency	kHz
Output ripple noise	<50 mV rms
Noise inserted on the input terminals	<50mV rms	<50 mV rms	<50 millivolts rms
Efficiency	>90 % at maximum output
Remote power on/off	No
Input Fuse	40A AGC x 2
Protection	Over Voltage , Over Current, Current Limiting, Short Circuit Automatic Recovery, Reverse Polarity Input, Reverse Battery Protection, Over Load, Over Temperature Shut Down, Input Under voltage Shutdown, Output Overvoltage Crowbar
Isolation	Common negative >500 volts isolation from case to any terminal
Dimensions	413 x 356 x 141 (16.25 x 14 x 5.56 inches) Including terminals and flange the total length is 18.06 inches
Connections	3/8" steel studs
Drawings	Click Here for Drawing
Weight	13.38 Kg (29.5 lbs)
Finish	Black Chromate/ Power Epoxy Coat
Audible Noise	None
Typical Service Life	>87,000 hours (10 years)
Standards	All units designed to meet MIL810G
Warranty	5 years	1 Year	1 Year

drawing of the 800 watt DC/DC battery charger showing dimensions

Advantages:

Heavy Duty, High Current Switchmode DC to DC Converters.

High efficiency DC DC conversion.

Excellent line and load regulation.

Wide input voltage range suitable for 12 Volt and 14 Volt systems.


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