Karcher 18v strimmer battery issues

tom1ie · 05-05-2026 03:09PM #1

hi all

I purchased the Karcher 18v LTR-18-30 on 29.04.23, and I received two batteries with it.

One of the batteries went faulty in and around january 2025.

I followed up with Karcher and a replacement battery order was placed on their system on 21/01/25.

The replacement battery has lasted less than 16 months and the other original battery has now stopped working also.

Where do i stand on looking for another replacement battery?

Do Karcher only have to replace batteries that were purchased less than 2 years from the original strimmer purchase date of 29.04.23?

Xterminator · 05-05-2026 03:52PM

yes. batteries are consumables. limited warranty and not covered by the up to six year rights.

given they replaced it and you got more than another year you are firmly outside of your statutory rights. i make it at abpout 3 years, yes?

This doesnt prevent your asking for goodwill and/or a discount from the manufacturer. But your warranty doesnt reset when you get a replacement, your now in 2026 and they have met their legal obligation.

Key Consumer Rights Regarding Batteries

Limited Lifespan: Because they are consumables, a battery wearing out through normal usage after a reasonable period is not considered a defect.
Premature Failure: If a battery (especially a non-replaceable one) fails to hold a charge shortly after purchase—for example, within the first 6–12 months—it may be considered faulty, and you are entitled to a repair or replacement.
6-Year Rule: Under Irish law, you can seek a remedy for faulty goods for up to 6 years. However, for a consumable item like a battery, you must prove the defect existed at the time of purchase, which becomes difficult after the first 6 months.

tom1ie · 05-05-2026 05:11PM

https://www.boards.ie/discussion/comment/124445865#Comment_124445865

Thanks Xterminator- that's pretty much what they told me.

I wont be buying Karcher again, their reviews on the website for their 2.5 and 5 Ah batteries are appalling.

Ah well its a Lesson learned!

tom1ie · 08-05-2026 06:02PM

Just to update on this issue- Karcher came good and agreed to replace both batteries, so they are sending me out a 2.5 and 5 Ah batteries.
So that’s great customer service in the end tbf.

The Continental Op · 08-05-2026 06:59PM

Karcher must use fairly sh1tty batteries? I have DeWalt 4Amp batteries that are in daily use and 10 years old.

That said how you treat them can make a massive difference to how they last. I never recharge a battery until its cooled off (after hard use they get hot). I never leave a battery uncharged (although 60% charge is good for long term storage).

I also don't think fast chargers do the batteries any good. Whenever possible I use a lower current slower charger.

Karcher 18v strimmer battery issues

Comments