Can this work off a generator which is not sine wave

A “Generator” is by common usage a rotary device that produces SINE wave signals/current. A signal generator or invertor can produce a square wave or in the case of the invertor a modified square/sine wave output. If the square wave signal is symmetrical and 60 hertz, emulating a 60 hertz “line” signal, then; yes , it could. I recommend a pure sine wave invertor or generator to prevent overheating.

I have 2- 12v, agm batteries in series, each 212 amp hour. can it be used for them? off grid solar, need to charge them over the winter

Sure the charger will slow charge those. Trying to understand why you would need a plug in charger for an off grid solar system, as the charger is gonna have to pull from the grid, the panels, or the battery, one. Why wouldn't you use a solar charge contoller instead?

Is this charger adequate to charge and maintain a group 24 deep cycle RV battery?

According to what their description says, it should not be a problem

Can I use it on lithium battery

This charger is designed for lead-acid batteries. Charging lithium batteries I believe uses less input voltage and the advertised charger is not adjustable. In short I would not try to charge a lithium battery with this charger.

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Unocho 24V 5A Battery Charger Maintainer 4-Stage Smart Lead-Acid Trickle Charger with Alligator Clips, I/O Switch and LED Display for AGM Gel SLA VRLA Wet Deep Cycle Batteries

Unocho 24V 5A Battery Charger Maintainer 4-Stage Smart Lead-Acid Trickle Charger with Alligator Clips, I/O Switch and LED Display for AGM Gel SLA VRLA Wet Deep Cycle Batteries

Product ID: 45072920

Details

Brand
Unocho
Color
blue
Item Weight
1.1 pounds
Output Voltage
24
Product Dimensions
2.56"D x x

⚡24V 5A output power

🔋4-stage smart charging tech

🔌Alligator clip direct connection

$107.57

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Description

🔋 Charge smarter, stay powered longer — don’t get left in the dark!

DIRECT TERMINAL ACCESS - Alligator clips enable quick, secure connection to battery terminals—no adapters needed.
INSTANT STATUS INSIGHT - LED display with 4-step charge progress keeps you informed at a glance.
VERSATILE POWER SOLUTION - Perfect for wheelchairs, scooters, forklifts, marine & backup systems—charge smarter, not harder.
UNIVERSAL 24 V COMPATIBILITY - Optimized for AGM, GEL, SLA, VRLA, Wet & deep-cycle lead-acid batteries from 9–150Ah.
PRECISION 4 STAGE SMART CHARGING - Microprocessor-controlled desulfation, bulk, absorption & float modes for peak battery health.

The Unocho 24V 5A Battery Charger Maintainer is a compact, microprocessor-controlled smart charger designed for 24V lead-acid batteries including AGM, GEL, SLA, VRLA, and wet types. Featuring a 4-stage charging process and LED status indicators, it ensures efficient charging and maintenance for batteries between 9–150Ah. Equipped with alligator clips for direct terminal connection, it’s ideal for mobility devices, electric carts, forklifts, marine batteries, and backup power systems, delivering reliable, safe, and hassle-free battery care.

Specifications

ASIN	B073ZGWGVF
Amperage	5 A
Best Sellers Rank	#207,565 in Automotive ( See Top 100 in Automotive ) #742 in Battery Chargers
Brand	Unocho
Color	blue
Compatible Devices	wheelchairs, mobility scooters, electric carts, forklifts, marine batteries, backup power systems
Connector Type Used on Cable	Alligator Clips
Current Rating	5 A
Customer Reviews	4.2 out of 5 stars 187 Reviews
Input Voltage	240 volts
Item Dimensions D x W x H	2.56"D x 6.42"W x 3.74"H
Item Weight	1.1 pounds
Manufacturer	Unocho
Mfr Part Number	EPA150-24
Model Number	Alligator Clips
Number of Items	1
Number of Packs	1
Number of Ports	1
Output Voltage	24 volts_of_direct_current
Product Dimensions	2.56"D x 6.42"W x 3.74"H
Specification Met	ul/ce/ccc
Warranty Description	1 year warranty

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