Top Post Plastic Battery Post Caps, Battery Post Terminal Cover Insulator Protector W/Washers for Car, Vehicle, RV and Boat (Cap, 2 Sets)

Four caps and four washers in red and black, cut for the usual top post cones: 19 millimetres at the positive end, 17 at the negative. The job is a post that has been taken out of service, a spare battery on a shelf or a terminal lifted for storage, and for that job a moulded cap is the least valuable object anywhere near the circuit right up to the moment something metal falls across the post.

Plastic, but which plastic

The material description begins and ends with durable plastic. No polymer is ever identified, and the washers are given no material of their own. That absence lands harder than it might, because the title markets these as an insulator, while the description offers no dielectric figure, no voltage rating and no temperature range behind the word.

Incidental is the supplier's own limit

The protection sentence covers a top post battery post not in use, guarding it against corrosion and against shorting the supplier is careful to call incidental. The qualifier came from the supplier and it has been left in place. The search listing writes prevent shorts instead, which converts a bounded claim into an absolute one. A push-on cap keeps a dropped spanner or a wandering lead off an idle post. It is not a sealed insulation system.

Two pairs, or two sets

The description counts two pairs of caps and two pairs of washers, which comes to four of each and eight pieces altogether. The title counts two sets instead. Nowhere in the record is a set defined, so whether one equals a pair is a question the supplier has left open. We have used the description's own unit, since pairs are what it actually counts in.

Key features

• Eight pieces in all: four caps and four washers, enough to shut down both posts on two batteries.
• Red and black throughout: caps and washers both come in the two colours, so polarity stays readable while a battery sits idle.
• Standard top post fit: made to the common cone pattern rather than to a particular make.
• Washers as well as caps: washers arrive in the same two colours and are counted in the pack alongside the caps.
• Push-on protection: designed to go over a post that is not in use and keep corrosion and stray contact away.
• Corrosion and contact both: the supplier names each of the two as what a cap keeps away from an idle post.

Specifications

• Caps included: 2 pairs, which is 4
• Washers included: 2 pairs, which is 4
• Colours: red and black, caps and washers alike
• Positive post served: 19 mm cone
• Negative post served: 17 mm cone
• Material as given: plastic
• Fitment given: cars, RVs, boats and other vehicles carrying a top post battery

Where this listing thins out

• Plastic is the entire material description. The polymer behind it is never identified, and the washers are given no material whatsoever.
• Insulator is a title word, yet no dielectric rating, no voltage figure and no temperature limit is attached to any piece in the pack.
• There is no ultraviolet rating and no flammability class either, on a part that lives in sunlight and engine heat.
• The search listing promises these prevent shorts. Incidental shorting is what the description says, and the bounded wording is what we have carried across.
• Two sets on the title against two pairs in the description. A set is nowhere defined, so the counts above follow the description.
• The source further claims these match the original caps a new battery arrives with. That is unsupported by any make, model or part reference, so it has been dropped rather than repeated.
• Two ampersands went missing from this feed, one in the packing sentence and one in the post-size sentence. Each is a loss, and no damaged fragment has been quoted above.
• Cap and washer dimensions and weights are missing, and so is any safety warning or fitting instruction.

Plastic over a post nobody is using makes for an unglamorous purchase, and that is rather the whole argument: the alternative is a bare terminal waiting for a toolbox to be put down on it.

Returns, Refunds, and Replacements Products that are received faulty, damaged, or not as described are eligible for a return, refund, or replacement in accordance with the Australian Consumer Law (ACL). We are committed to ensuring all products meet the standards of quality and reliability expected by our customers. However, please note that we do not accept returns or provide refunds for change of mind. We encourage you to carefully consider your purchase to ensure it meets your needs and expectations.

Delivery Timeframe

Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows:

For customers in Victoria, approximately 7-10 working days; For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days; For customers in WA, NT, and TAS, approximately 9-12 working days.