What is idle current draw when low voltage disconnect trips?

Less than 1.5 watts per advertised specs which would be about 0.1 A (100 ma).

Can this be used with AC power at inverter output? I am thinking of wiring this into a small extension cord to have a "protected" circuit.

Yes..BUT.. you need a 12 volt DPDT relay between your inverter and the load . Your DC 12 volts going into the inverter will also go into this Voltage Protector and the output from this Voltage Protector will power your DC 12 relay. When the 12 volts DC voltage going into the inverter drops to the set low voltage it will disable the relay which in turns cuts off the ac power between your inverter and your load.

What is the maximum amperage for this item?

The maximum amperage before the breaker trips is 20A

With this work with dewalt 20v batteries?

For posterity and because this question is popular: program at 15 Volts 5-cells * 3 Volts = 15 Volts At the absolute lowest, down to 2.5V per cell. But I don't recommend that for safety or longevity. I don't see anything in the description advising against Li-Ion batteries. Nor can I think of any reason this would not work for Li-Ion batteries, provided you program the shutoff correctly.

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ICSTATION Digital Low Voltage Protector, DC 12-36V 20A Low Voltage Cutoff Disconnect Switch Over-Discharge Protection Module for Lead Acid Lithium Battery Solar Panel Lighting System

ICSTATION Digital Low Voltage Protector, DC 12-36V 20A Low Voltage Cutoff Disconnect Switch Over-Discharge Protection Module for Lead Acid Lithium Battery Solar Panel Lighting System

Product ID: 56661339

Details

Brand
IS
Connector Type
Plug In
Contact Type
Normally
Current Rating
20 A
Item dimensions L x W x H
2.24 x 1.65 x
Material
Plastic

⏳0-999s delay turn-on timer

⚡12-36V DC input range

🔋20A max current cutoff

€ 32.86

Duties & taxes included

In stock

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Description

🔌 Protect your power, prolong your freedom.

MEMORY RETENTION - Saves your settings even after power loss, ensuring seamless operation without reconfiguration.
PRECISION VOLTAGE GUARD - Automatically disconnects at preset voltage to prevent battery over-discharge and extend lifespan.
UNIVERSAL COMPATIBILITY - Works flawlessly with Lead Acid, Lithium Ion batteries, and solar panel systems for versatile power management.
COMPACT DURABLE DESIGN - Small 57x42x19mm footprint with IP65 rating and stainless steel contacts for reliable, long-term use.
CUSTOMIZABLE DELAY TIMER - Set turn-on delay from 0 to 999 seconds to protect your system from rapid cycling.

The ICSTATION Digital Low Voltage Protector is a compact, panel-mount battery protection module designed for 12-36V DC systems. It features a 20A current cutoff relay that prevents over-discharge by disconnecting batteries at user-set voltages. With a programmable delay turn-on timer (0-999 seconds) and memory retention for settings after power loss, it ensures reliable, customizable battery management. Compatible with lead acid and lithium batteries as well as solar panel setups, it’s an essential safeguard for extending battery life and maintaining system stability.

Specifications

ASIN	B07929Y5SZ
Actuator Type	Push Button
Best Sellers Rank	#21,193 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #15 in Renewable Energy Controllers
Brand Name	IS
Circuit Type	1-way
Color	Blue
Compatible Devices	Lead Acid Batteries, Lithium Ion Batteries, Solar Panel Batteries
Connectivity Protocol	X-10
Connector Type	Plug In
Contact Material	Stainless Steel
Contact Type	Normally Closed
Control Method	Touch
Control Type	manual
Controller Type	Push Button
Current Rating	20 A
Customer Reviews	4.3 4.3 out of 5 stars (1,028)
International Protection Rating	IP65
Item Dimensions	2.24 x 1.65 x 0.75 inches
Manufacturer	icstation
Material Type	Plastic
Model	Digital Battery Low Voltage Protection
Mounting Type	Panel Mount
Number of Items	1
Number of Positions	2
Operating Voltage	36 volts
Operation Mode	Manually, Off, Push Button
Part Number	13098
Switch Type	Push Button
Terminal	Screw
Unit Count	1 Count
Wattage	1.5 watts

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