Karcher Window Vac Replacement Battery 3.7V 2500mAh 9.25WH with Solder tags

Karcher Window VAC Replacement Battery 2500mAh with Solder tabs
£8.95 GBP

This high capacity rechargeable battery features heavy duty solder tags, making it easy to install and solder into place. With an impressive 2500mAh capacity and high power delivery, it significantly extends the runtime of older Window VAC machines which had a 2100mAh 7.8Wh battery. These batteries adhere to the correct specifications required for charging and operating seamlessly in most Kärcher Window Vacs.

This is a top quality replacement battery, designed to replace exactly the majority Karcher Window VAC models that use Lithium-ion batteries. Compatible models include WV1, WV2, WV50, WV55, WV60, WV70, Plus, Premium, Black, White, and Classic models.

Key Specifications:

Chemistry: Lithium-ion (Li-ion)
Voltage: 3.7V (compatible with 3.65V, 3.6V and 3.8V batteries)
Typical Capacity: 2500mAh
Power: 9.25WH
Maximum continuous current: 20A
Length: 65mm (compatible with 64mm, 65mm, 66mm, and 67mm battery replacements)
Diameter: 18mm


Batteries will only have a low test charge. Ensure batteries are fully charged to reach full capacity. Failure to do so may lead to long term reduction in performance.

We do NOT accept any responsibly for damage, injury or death caused by improper use of these batteries

Do not overcharge - ensure the charger voltage does not exceed the batteries stated full charge voltage.
Do not over-discharge- Ensure the equipment you use do not draw more current than the batteries Maximum Continuous Discharge Current.
Do not leave batteries discharged for a long period- Leaving Li-Ion batteries in a discharged state can incur irreversible damage - creating a loss in capacity and a loss in cycles.
Do not short circuit your batteries- NEVER short circuit Lithium batteries - Short circuiting can cause a huge surge of current that will potentially burn out your battery, damage your equipment, and even cause serious injury to you.
Do not let your batteries touch each other or other metallic items- Keeping your batteries loose, such as in your pockets, is a serious way to have your batteries fail and seriously harm you. There are battery holders and covers to keep your batteries safe.
Do not dispose any battery in a fire- There are dangerous chemicals in batteries. If you try to burn your batteries, they will release dangerous fumes and will probably explode. Always dispose your old batteries to a battery recycling centre.