Best Li Ion Akku 18v 2026

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Last Updated - 22.07.2026

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01

Einhell

Einhell 4511526 Original PXC Twinpack 5.2 Ah Power X-Change Battery (Li-Ion, 18 V, 2 x 5.2 Ah Batteries, Universal for All PXC Devices, Proactive Battery Management, Adapted Charge Cycles)

26% Off

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The charging status can be read at a glance: The three-stage LED system provides the constant possibility of charge control.
The Einhell PXC Twin-Pack 5.2 Ah battery consists of two universally applicable 18 volt batteries from the Power X-Change range and offers double power for all devices in the innovative system series.
Maximum safety is provided by Einhell's proactive battery management and all parameters of the battery are always monitored by the most modern components.
Lithium-ion cells provide more power with immunity to ‘battery-common’ diseases and resist battery self-discharge. The battery life is significantly extended by situationally adapted charging cycles.
A three-stage LED battery charge status indicator immediately provides information about the current charge level. Components constantly monitor the parameters during charging.
A high impact protection and a good grip is ensured by the rubberised housing. Thanks to the adapted recessed grips, the batteries can be easily inserted and removed.

96,90 € 130,95 €(26% Off off)
02

Einhell

Einhell PXC Twin Pack 4.0 Ah Power X-Change Volks.Battery (Li-Ion, 18 V, 2 x 4.0 Ah, Suitable for all PXC Devices, Proactive Battery Management, Situational Adapted Charge Cycles

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The charging status can be read at a glance: The three-stage LED-system provides the constant possibility of charge control.
The Einhell PXC Twin-pack 4.0 Ah battery consists of two universally applicable 18 volt batteries from the Power X-Change range and offers double power for all devices in the innovative system series.
Maximum safety is provided by Einhell's proactive battery management and all parameters of the battery are always monitored by the most modern components.
Lithium-ion cells provide more power with immunity to ‘battery-common’ diseases and resist battery self-discharge. The battery life is significantly extended by situationally adapted charging cycles.
A high impact protection and a good grip is ensured by the rubberised housing. Thanks to the adapted recessed grips, the batteries can be easily inserted and removed.

52,89 €
Value for Money

03

Bonadget

2 x 18 V 8.0 Ah / 8000 mAh replacement battery for Makita compatible BL1860B BL1850B BL1840 BL1830 BL1815 BL1845 BL1890 BL1415 BL1430 BL1440 BL1835 194205 -3 LXT-400 with LED tool battery.

15% Off Limited Time Deal

15% Off

Limited Time Deal

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Warranty】One year & 24 hours warranty & friendly customer service & Unconditional refund or replacement of a new battery if quality problems. If you have any problems with the use:
Robust and durable: the battery case is made of wear-resistant and durable ABS + PC plastic. Thanks to its robust construction, the battery is shock and wear-resistant in daily use and can withstand even harsh working conditions. It is the ideal and powerful partner for your 18V battery devices.
Product details: voltage: 18 V, power: 144 W, new battery, box contents: 2 x replacement battery for Makita battery
Multiple protection: protection functions against deep discharge of the battery, incorrect voltage, overload of the spare battery, short circuit, internal overheating. In addition, you can charge the battery at any time, no memory effect4 very convenient to use.
Battery LED indicator: The BL1860B battery can be residual capacity indicator + self-fail-proof, 4 LED indicators, when pressing the button, the remaining power or charging status is displayed, 2 LED lights flash alternately, informing about the status of the "error diagnosis". Surge protection, no memory effect.
Applicable model: Compatible with: BL1860B, BL1860, BL1850B, BL1850, BL1840B, BL1840, BL1830B, BL1830, BL1820, BL1825, BL1835, BL1860B, BL1845, 194205-. 3,194309-1,194204-5,196399 -0, 196673-6, 194205-L1845 BL1890 BL1415 BL1430 BL1440 BL1835 194205-3 LXT-400 etc.

33,98 € 39,99 €(15% Off off)
04

Bosch

Bosch 18 Volt Replacement Battery, 2.5 Ah, Compatible with All Devices of Green Bosch Home & Garden 18 V System

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9.2

Excellent

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Main highlights

Weight: 330 g
Powerful lithium battery – can be used on all tools from the 18 V lithium-ion "Power4All" system from Bosch. Type: PBA
Longer service life thanks to the Electronic Cell Protection (ECP)
Lithium-ion battery: no memory effect or self-draining, permanent power

21,89 €
05

REACELL

REACELL 9839-20 9840-20 Battery 4000 mAh Compatible with Gardena 18V BLi-18 Battery 9840-20 Lithium Battery Compatible with Gardena Li-ion System Li-18 Tools

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9.1

Excellent

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Main highlights

Safe and reliable: with protective functions against overdischarge, overheating, overload and short circuit, it can be operated safely and worry-free and there is no memory effect
Replacement battery for Gardena BLi-18 battery: battery type: lithium-ion, voltage: 18 V, capacity: 4000 mAh, only as a replacement battery for Gardena 18 V 9839-20, 9840-20 battery
Please confirm that your device is compatible with this battery before purchasing. If you are not sure whether it is compatible, please feel free to contact us. We will do our best to help you solve the problem.
Applicable models: replacement battery compatible with Gardena system battery BLi-18, 9840-20, 9839-20, replacement battery for Gardena Li-18 18V tools 5023-20, 5023-55, 5039-20, 5039-55, 9837-20, 9837-55. 5, 5, 9838-20, 9838-55, 1749-20, 1749-61, 1749-66, 9335-20, 9335-55, 9823-20, 9825-20, 8866-20, 8866-55 (Replacement battery, not original). Please note that you need to confirm whether your device model is compatible with our battery model before purchasing. (Please note: not compatible with models 8025-20 and 8839-20)
4000 mAh high capacity: the Reacell 4000 mAh lithium-ion battery with high capacity is a powerful 18 V replacement battery for Gardena battery BLi-18 with long-lasting performance. Work more efficiently by immediately checking the remaining battery charge at the touch of a button

39,99 €
06

Einhell

Original Einhell Starter Kit Battery and Charger Power X-Change Volks.Battery, Lithium Ion, 18 V, 4.0 Ah Battery and Quick Charger, Suitable for all Power X-Change Devices

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The rubberised housing of the battery provides a high level of shock protection and a firm grip. Built-in recessed grips make it easy to remove the battery. The charger is already prepared with built-in hanging loops for wall mounting. The maximum charging time with fast charging technology is 75 minutes.
The multifunctional Power X-Change battery system, which can be combined with one another, is suitable for cordless tools from the entire product family in the garden and workshop area. The battery system can be used universally for all devices in the Power X-Change series.
The high-quality lithium-ion cells resist battery-standard self-discharge and can be recharged during any phase without damage.
The Einhell 18 Volt 4.0 Ah PXC Starter Kit is the most powerful set in the product family, featuring a powerful 4.0 Ah battery and a PXC series charger.
Einhell's proactive battery and intelligent charging management ensures maximum safety in operation, as well as during the charging period. All battery parameters are monitored by the available components.
During charging, the cycle is continuously monitored to ensure the optimum mode. Battery life is significantly extended by the situationally adjusted charging cycles.
A three-level LED charge indicator on the battery shows the current energy reserves. The 6-stage charging system shows the current charge level in real time during the charging cycle.

29,85 €
07

Bonadget

2 x 18 V 5000 mAh Replacement Battery for Makita Battery 18 V BL1830 BL1830B BL1850 BL1850B BL1860 BL1860B BL1840 BL1835 BL1845 BL1820 LXT-400 Tool Batteries

15% Off Limited Time Deal

15% Off

Limited Time Deal

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Safe to use: and the battery has a temperature control function, which can automatically turn on the protection function at a certain high temperature, which is safer.
Multiple protection: built-in protection against overcharge, over-discharge, over-current and overheating, provides short circuit protection and continuous voltage circuit. Run safely with over discharge, overload and short circuit protection, without memory effect.
LED indicator: Bonadget replacement battery with 3 LED indicators show you battery consumption at any time. And the battery has a temperature control function, which can automatically turn on the protection function at a certain high temperature, which is safer.
Battery specification: battery type: Li-ion/battery voltage: 18 V/power: 90 W/battery capacity: 5.0 Ah/5000 mAh; box contents: 2 x 5000 mAh replacement battery for Makita 18 V battery
Battery compatibility: 2 batteries compatible with Makita 18V Series BL1850 BL1850B BL1860 BL1860B BL1830 BL1830B BL1835 BL1840 BL1840B BL1820 LXT400 194205-3,19430 99-1,1994204-5,196399 -0, 196673-6 etc.

42,48 € 49,98 €(15% Off off)
08

Bosch

Bosch Home and Garden PBA Battery Pack, 18 V, 4.0 Ah, W-C, 18 V System, in Box, 1600A011T8

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Power supply for all 18 V tools. The included battery is compatible with all products of the Bosch Home and Garden green 18 V system and Bosch Unlimited vacuum cleaners
Long battery life. Ideal for extensive projects such as hedge cutting and sanding
Flexible, maximum performance and long service life for tasks around the home or garden
Excellent operating time. Perform very large and challenging DIY projects with one charge
Compatible with AL1810 CV, AL 18V-20, AL1815 CV, AL 1830 CV, AL 1880 CV/not compatible with AL 2204 CV, AL 2215 CV
Compatibility: The battery can be used with almost all Bosch 18 V home and garden tools, except PSM 18 LI and ALB 18 LI

32,86 €
09

Einhell

Original Einhell 18 V 2.5 Ah PXC Starter Kit (Battery & Charger, 18 V, Max. Power 720 W, universal for all Power X-Change devices, process-controlled battery management system ABS, 3-stage LED display)

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With the help of the recessed grip, the battery can be easily removed from all devices. The quick charger is compact and takes up little space, thanks to the integrated hanging eyelets, the charger can be easily mounted on the wall; the maximum charging time with the fast charging technology is 50 minutes
The process-controlled, active battery management system ABS constantly monitors the parameters of the battery using the microprocessor. This ensures high safety, optimal device performance, maximum running time and durability
The high quality battery resists the memory effect and the battery standard self-discharge for constant, high power. The 2.5 Ah battery is the ideal base of the Power X-Change range and suitable for twin pack use in 36 V applications
The current charge status can be controlled by a 3-stage LED display. The housing resists dust, corrosion and mechanical influences due to its design
The Einhell 18 V 2.5 Ah PXC starter kit with a 18 V 2.5 Ah Power X-Change battery and the fast charger is part of the multifunctional and limitless combinable battery system Power X-Change from Einhell
Thanks to the fast charging technology, charging times are short, for optimal charging and high safety, the battery is constantly monitored by the intelligent charging management
Refresh mode allows you to reactivate deeply discharged batteries. All current information is provided by the 6-way status LED display

19,95 €
10

Makita

Makita 197599-5 BL1830B Li-Ion Battery, 18.0V 3Ah 3W 18V, Black

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8.6

Very Good

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Main highlights

Item number: 197599-5.
BL1830B Li-ion Battery 18, 0V 3 Ah.
An original Makita accessory, durable and robust.

47,94 €