Would this work for a lead acid battery?

This controller would not work well for lead acid batteries. (wrong voltage/current curves). Something like the Ardest module (also available on Amazon) is designed for both applications. Depending on the size of the battery, the current ratings on the solar panels used might be considerably higher than the small lithium batteries used in solar devices,

Doesn’t charge? the battery, 3.7v 1000mah, isn’t being recharged, comes on and off via solar cell, 5v 30ma. once drained, does not rechange. no switch

For a 1000mah/3.7 volt battery, solar panel will have to be putting out at least 7-10 volts at at least 300ma

So this apparently has reverse current protection but does it include overcurrent protection?

no, that is why you have to use a protected battery.

Given a constant voltage input- say 5v solar cell in - is the output voltage and current constant or does it vary with battery state of charge?

Output is constant regardless of battery charge as long as the sun is a consistent brightness.

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Acxico 3Pcs Solar Charge Controller Board Lithium Battery Charging Controller Auto ON/OFF Light Control Switch For DIY Street Lights Garden Lights

Acxico 3Pcs Solar Charge Controller Board Lithium Battery Charging Controller Auto ON/OFF Light Control Switch For DIY Street Lights Garden Lights

Product ID: 192151568

Details

Brand
Acxico
Circuit Type
1-way
Connector Type
Screw
Contact Type
Normally Open
Current Rating
0.5 Amps
Material
Plastic

⚡Auto ON/OFF light control switch

🔋Supports 1-4S Lithium & LiFePO4 batteries

☀️4.5-28V solar input range

€ 15.76

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌞 Power your nights, effortlessly and smartly.

ROBUST RELIABLE - IP54 rated protection with anti-reverse charging and over-discharge safeguards for long-lasting performance.
TRIPLE PACK VALUE - Three controllers in one set—perfect for scaling your garden, street, or landscape lighting projects.
SEAMLESS SOLAR SYNC - Automatically charges by day and powers lights by night—never miss a sunset or sunrise moment.
SMART VOLTAGE DETECTION - Eliminates photosensitive elements by detecting solar panel voltage changes for precise control.
UNIVERSAL BATTERY COMPATIBILITY - Optimized for 1-4S Lithium and LiFePO4 batteries, ensuring flexible DIY setups.

The Acxico 3Pcs Solar Charge Controller Board is a versatile, automatic ON/OFF light control switch designed for DIY solar lighting projects. It supports a wide input voltage range (4.5-28V DC) and is compatible with 1-4S Lithium and LiFePO4 batteries. Featuring smart voltage detection without photosensitive elements, it ensures efficient charging during the day and automatic lighting at night. With IP54 protection, anti-reverse charging, and over-discharge safeguards, this controller offers reliable, maintenance-free operation for garden, street, and landscape solar lights.

Specifications

ASIN	B0837NH415
Actuator Type	Automatic
Best Sellers Rank	#149,613 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #143 in Renewable Energy Controllers
Brand Name	Acxico
Circuit Type	1-way
Color	3PCS
Compatible Devices	solar panels, lithium batteries, LiFePO4 batteries, LED lights
Connectivity Protocol	X-10
Connector Type	Screw
Contact Material	Gold Or Silver
Contact Type	Normally Open
Control Method	App
Control Type	Automatic
Current Rating	0.5 Amps
Customer Reviews	4.3 4.3 out of 5 stars (160)
International Protection Rating	IP54
Manufacturer	Acxico
Material Type	Plastic
Model	LB183
Mounting Type	Panel Mount
Number of Items	3
Number of Positions	2
Operating Voltage	5 Volts
Operation Mode	Automatically,Off
Part Number	LB183
Specification Met	Ip54
Switch Type	Limit Switch
Terminal	Physical
UPC	797806002856
Unit Count	3 Count
Wattage	12 watts

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