What gauge are the ring connector cables?

By "ring connector cables" I presume you mean the output cables from the transformer to the battery connector. By eye I'd say they are 14 gauge. Using a cable sizing app that would be correct for the 12v 2a output from these units.

Will this charge 2x12v lipo (24v) batteries in series?

It is for a 12 volt system; not a 24.

Which wire is negative, the ribbed or soft?

On mine the ribbed is negative. It goes to the black battery connector clamp which attaches the the battery

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Mroinge MBC022, 12V 2A Lead Acid & Lithium(LiFePO4) Automatic Trickle Battery Charger Smart Battery Maintainer for Car Motorcycle Lawn Mower Boat ATV SLA AGM Gel Lithium(LiFePO4) and More Batteries

Product ID: 104465399

Details

Brand
Mroinge
Color
Black
Item Weight
0.35 Kilograms
Output Voltage
12 Volts (DC)
Product Dimensions
2.32"D x x

⚡5-stage smart charging tech

🔋12V 2A output power

🛡️Multi-level safety protection

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Description

🔌 Power up smart, stay charged longer!

ROBUST SAFETY SUITE - Built-in spark proof, reverse polarity, overcharge, short-circuit, and over-temperature protections keep your batteries and devices safe.
USER FRIENDLY DESIGN - Intuitive LED indicators and easy-connect clips with a 12ft cord make maintenance effortless and hassle-free.
SMART 5 STAGE CHARGING - Maximizes battery lifespan with Initialization, Trickle, Bulk, Absorption, and Float modes—no overcharging, just peak performance.
UNIVERSAL VEHICLE READY - Perfectly tailored for cars, motorcycles, boats, ATVs, lawnmowers, and more—your all-in-one battery care solution.
DUAL BATTERY COMPATIBILITY - Seamlessly charges both Lead Acid & Lithium (LiFePO4) batteries up to 85Ah for ultimate versatility.

The Mroinge MBC022 is a compact, intelligent 12V 2A battery charger and maintainer designed for both Lead Acid and Lithium (LiFePO4) batteries. Featuring advanced 5-stage charging and comprehensive safety protections, it ensures optimal battery health across a wide range of vehicles including cars, motorcycles, boats, and lawn equipment. With intuitive LED feedback, versatile connectors, and a 2-year warranty, it’s the smart choice for professionals who demand reliable, efficient battery care.

Specifications

ASIN	B07MCTXFC7
Amperage	2 Amps
Best Sellers Rank	#6,812 in Automotive ( See Top 100 in Automotive ) #53 in Battery Chargers
Brand	Mroinge
Color	Black
Compatible Devices	Cars, Motorcycles, Boats, ATVs, Lawnmowers, etc.
Connector Type Used on Cable	Alligator Clips, O-ring Terminals
Current Rating	2 Amps
Customer Reviews	4.6 4.6 out of 5 stars (3,030)
Input Voltage	120 Volts (AC)
Item Dimensions D x W x H	2.32"D x 3.78"W x 1.42"H
Item Weight	0.35 Kilograms
Manufacturer	Mroinge
Mfr Part Number	MBC022
Model Number	MBC022
Number of Ports	1
Output Voltage	12 Volts (DC)
UPC	603629518866
Unit Count	1.0 Count
Warranty Description	2 years

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33474CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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