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 Amps
Item dimensions L x W x H
2.24 x 1.65 x
Material
Plastic

⏳0-999s delay turn-on

⚡12-36V DC input range

🔋20A max current cutoff

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Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Protect your power, prolong your freedom.

MEMORY SAFE SETTINGS - Never lose your custom configurations thanks to built-in power-off memory retention.
ROBUST COMPACT DESIGN - Small 2.24x1.65 inch panel mount with IP65 rating, built to last in any environment.
REAL TIME VOLTAGE DISPLAY - Stay informed with a crisp LED readout showing exact battery voltage at a glance.
CUSTOMIZABLE POWER CONTROL - Set your own minimum voltage and delay turn-on to perfectly match your energy needs.
PRECISION BATTERY GUARDIAN - Accurate 0.1V voltage cutoff protects your battery from damaging over-discharge.

The ICSTATION Digital Low Voltage Protector is a compact, panel-mount battery protection module designed for 12-36V DC systems. It prevents over-discharge by cutting off loads at user-set voltages with 0.1V accuracy and supports up to 20A current. Featuring a delay turn-on timer (0-999s), memory retention of settings, and a clear LED voltage display, it’s ideal for solar, lead acid, and lithium battery setups seeking reliable, customizable power management.

Specifications

ASIN	B07929Y5SZ
Actuator Type	Push Button
Best Sellers Rank	#30,550 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #16 in Renewable Energy Controllers
Brand Name	IS
Circuit Type	1-way
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 Amps
Customer Reviews	4.3 4.3 out of 5 stars (1,024)
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 Positions	2
Operating Voltage	36 Volts
Operation Mode	Manually, Off, Push Button
Part Number	13098
Switch Type	Push Button
Terminal	Screw
Unit Count	1.0 Count
Wattage	1.5 watts

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