how many amps is this rated for and how long is it rated for

It is rated at 5 amps continuous. It is designed to be used with a trickle charger which charges at no more than 3 amps - 12 volts. I am sure that it could handle more up to the capacity of the connector and or wires however I do not know what that would be. It is a very well made device. From your question it sounds like you plan another use for it so common sense comes into play. Good luck on your project. Harold

does this connector have a typical cap or cover over thr ends to protect from dirt/water etc?

Yes, it has a plastic cap/cover to protect the connectors... at least mine does.

Red goes to positive and does the black go to negative or it should be grounded?

Red to positive and black to negative simply because the cable fitting has a convenient bolt to securely attach it to . (Battery is grounded anyway)

will the eyelets fit the larger screws on rv gel batteries

The eyelets will not fit the terminal screw post on a regular size battery. However, they are easily changed and the effort is well worth it. I have three Interstate deep cycle batteries on my fishing pontoon and one of these units on each battery. Each battery has its own battery box. When it is charging time, just plug the charger into this pig tail and charge. No removing the batter box lid to get to the battery terminals. Great little piece of equipment. Highly recommend Big Spoodie

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Schumacher Electric 18-Inch Ring Connection Cable, for Car Battery Chargers and Maintainers, Quick Connect, for Motorcycle, Power Sport, and Lawn Tractor Batteries, WM-12

Schumacher Electric 18-Inch Ring Connection Cable, for Car Battery Chargers and Maintainers, Quick Connect, for Motorcycle, Power Sport, and Lawn Tractor Batteries, WM-12

Product ID: 4134003

Details

Amperage
5 Amps
Brand
Schumacher
Color
Black
Current Rating
5 Amps
Item Weight
22.68 g

⚡5 Amps max power

🎨Color-coded cables

🔗Quick-connect harness

Description

🔋 Charge smarter, not harder — power up with Schumacher precision!

EXTENDED REACH - 18-inch cable length for those hard-to-access batteries.
TRUSTED DURABILITY - Schumacher quality since 1947 ensures long-lasting reliability.
PRECISION COLOR CODING - Error-proof installation with intuitive cable colors.
UNIVERSAL COMPATIBILITY - Works seamlessly with all Schumacher chargers under 5 Amps.
EFFORTLESS QUICK CONNECT - Hook up your charger in seconds—no clamps, no hassle.

The Schumacher WM-12 is an 18-inch ring connection cable designed for quick, secure attachment to Schumacher battery chargers and maintainers rated 5 Amps or less. Featuring a quick-connect harness and color-coded cables, it simplifies charging for motorcycles, lawn tractors, and power sports vehicles. Built with trusted Schumacher durability, it ensures reliable battery maintenance with easy installation and a 1-year warranty.

Specifications

ASIN	B003WDDLTO
Amperage	5 Amps
Best Sellers Rank	#246,877 in Automotive ( See Top 100 in Automotive ) #205 in Automotive Battery Jumper Cables
Brand	Schumacher Electric
Built-In Media	Cable Connector
Color	Black
Compatible Devices	Schumacher chargers and maintainers 5 Amps and under
Connector Type Used on Cable	Ring Connector
Current Rating	5 Amps
Customer Reviews	4.7 4.7 out of 5 stars (4,303)
Global Trade Identification Number	00026666300087
Item Type Name	Ring Connection Cable for Battery Chargers and Maintainers
Item Weight	22.68 g
Manufacturer	Schumacher Electric
Mfr Part Number	WM-12
Model Number	WM-12
Number of Ports	2
UPC	026666300087
Unit Count	1.0 Count
Warranty Description	1 Year Warranty

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