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 WM-12 12 Cable Connector for Battery Charger / Maintainer

Product ID: 261084519

Details

Amperage
5 Amps
Brand
Schumacher
Colour
Black
Current rating
5 Amps
Item weight
23 g

⚡5 Amp max current rating for efficient charging

🎯Color-coded cables for safe, error-free connection

🔌18" total cable length for flexible reach

Description

🔋 Keep your ride ready—charge smarter, not harder!

SAFETY FIRST - Color-coded cables minimize connection errors and maximize user safety
EFFORTLESS REACH - 12" cable plus quick-connect ring terminal extends to 18" for hard-to-access batteries
COMPACT LIGHTWEIGHT - Weighs just 0.05 lbs, making it easy to handle and store without bulk
SEAMLESS COMPATIBILITY - Designed exclusively for Schumacher chargers and maintainers up to 5A for perfect synergy
VERSATILE POWER MAINTENANCE - Ideal for motorcycles, lawn mowers, and seasonal battery upkeep—never get stranded

The Schumacher WM-12 is an 18-inch cable connector designed to extend the reach of your Schumacher battery charger or maintainer (up to 5 amps). Featuring quick-connect ring terminals and color-coded cables, it ensures safe, hassle-free attachment to hard-to-reach batteries on motorcycles, lawn mowers, and more. Lightweight and versatile, it’s the essential accessory for proactive battery care and off-season maintenance.

Specifications

ASIN	B003WDDLTO
Amperage	5 Amps
Best Sellers Rank	#245,412 in Automotive ( See Top 100 in Automotive ) #214 in Automotive Replacement Battery Jumper Cables
Brand	Schumacher Electric
Built-In Media	Cable Connector
Color	Black
Compatible Devices	Schumacher chargers and maintainers up to 5A
Connector Type Used on Cable	Ring Terminal
Current Rating	5 Amps
Customer Reviews	4.7 4.7 out of 5 stars (4,155)
Global Trade Identification Number	00026666300087
Item Type Name	Schumacher WM-12 18" Cable Connector for Battery Charger / Maintainer
Item Weight	0.05 Pounds
Manufacturer	Schumacher
Mfr Part Number	WM-12
Model Number	WM-12
Number of Items	1
Number of Packs	1
Number of Ports	2
UPC	026666300087
Unit Count	1 Count

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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