The Buckshot Racing #77 Ring Ternimal Connection Cable for SAE Battery Chargers and Maintainers has several advantages, including: 
 
Ease of use: The 18-inch length (color-coded red for the positive (+) battery terminal) makes it easy to attach to hard-to-reach batteries with M6 or 1/4" battery terminals.
 
Versatility: It's compatible with most chargers and maintainers up to 10 amps and has a weatherproof cap so you can leave it attached to the battery (Lead Acid, AGM, or Lithium).
 
Quick Connect: The quick-connect plug allows you to attach
any battery charger or maintainer with a standard SAE plug in seconds.
 
Charged: It can help keep batteries charged between boat races, and rides and also maintenance in the off-season.
 
Contact Mike Hill at STVracer@yahoo.com with any questions,