Car Battery Post Terminal Shims Pack - Repair Top Post Battery Ends

In this review of the Car Battery Post Terminal Shims Pack, the bottom line is simple: this kit is for vehicle owners who need a low-cost, practical repair for corroded top-post battery terminals without replacing the entire battery. The reviewer found the set of 10 lead shims plus 12 anti-corrosion fiber washers provides a straightforward way to restore a stable conductive connection and extend battery life, making it a sensible garage fix for cars, trucks, RVs and boats.

Key Features

• Complete repair kit: Includes 10 lead gaskets and 12 fiber anti-corrosion washers so you can replace damaged terminal posts and seals without buying a new battery.
• Practical design: The shims are made to slip over damaged top-post terminals so the battery can be reused rather than scrapped, saving time and cost.
• Corrosion resistance: Fiber washers help prevent acid damage around the terminal area, which can extend the service life of the battery and nearby connections.
• Good conductivity: Lead construction offers reliable electrical contact to improve voltage and current delivery compared with heavily corroded posts.
• Easy installation: The shims are intended for simple replacement of the damaged column without special tools or professional skills.
• Wide compatibility: Designed for standard top-post batteries, fitting 19 mm positive and 17 mm negative top posts in many vehicles and marine applications.

Who It's For

This product suits DIYers, fleet maintenance techs, and owners of cars, SUVs, trucks, RVs or boats who encounter corroded top-post battery electrodes and want a low-cost repair option. It is especially useful when the battery body is healthy but the exposed post has been eaten by acid.

It is not intended for those who need a full battery rebuild or for applications that require a custom-sized terminal; buyers should confirm the 19 mm positive and 17 mm negative top-post fit before purchasing. For severe internal battery failure, a replacement battery is still the correct choice.

Pros & Cons

Pros

• Restores a usable top-post connection without replacing the whole battery, saving cost.
• Solid build quality that stands up to tight battery clamps while remaining thin enough to fit.
• Includes anti-corrosion fiber gaskets to protect the terminal area and improve longevity.

Cons

• Some users report difficulty reconnecting terminals on occasion, so fit and clamp reassembly may require care.

Specifications

Material	Lead (shims) and fiber (washers)
Bottom diameter	19 mm (0.75 in)
Height	20 mm (0.79 in)
Lead shim thickness	0.5 mm (0.019 in)
Notch dimensions	Length 6 mm (0.24 in), Height 12.5 mm (0.49 in)
Pack contents	10 lead gaskets and 12 fiber anti-corrosion washers (6 red/6 green)

Our Verdict

For anyone dealing with corroded top-post battery terminals, this shim and washer pack is a practical, cost-effective repair that restores conductivity and delays battery replacement. It offers good materials and simple installation for most standard top-post batteries, making it a smart value purchase for do-it-yourself maintenance.

Frequently Asked Questions

Will these fit my car battery?
They are designed for standard top-post batteries with a 19 mm positive and 17 mm negative post; verify your post size to ensure compatibility.

Are the fiber washers color-coded for polarity?
The kit includes red and green fiber washers for easier organization, but buyers should still confirm proper polarity when reassembling terminals.

Do I need special tools to install these?
No special tools are required; the damaged post is removed and replaced with the lead shim and washer, then the clamp is reattached, though careful tightening is recommended to ensure good contact.