HUSQVARNA 40-B140 Battery (4 Ah) (970457203)
RRP: £149.99
Our Price: £115.00 (inc VAT)
In stock
Frequently bought together
How long will this battery last? View our Battery Run Times guide for estimated run times across compatible machines.
About the HUSQVARNA 40-B140 Battery (4 Ah)
Husqvarna 40-B140 Battery (4 Ah): Reliable 36 V Power and Efficient Cooling
Keep compatible Husqvarna cordless tools running smoothly with the Husqvarna 40-B140 Battery. This integrated lithium-ion battery combines a 4 Ah capacity with 144 Wh of energy. High-power cells provide consistent output across varied conditions, while active cooling ensures effective performance during intensive work and fast charging.
Compact and interchangeable, the 40-B140 forms part of Husqvarna’s versatile 36 V BLi-X battery platform. This allows the same battery to power a range of compatible Husqvarna tools.
High-Power Cells for Consistent Performance
The 40-B140 is designed to provide dependable power when working conditions become more demanding. Its high-power cells support continuous output across different climates and applications.
With a 4 Ah capacity and 144 Wh of stored energy, this lithium-ion battery offers a useful balance between runtime and easy handling. It weighs only 1.25 kg, helping keep compatible handheld tools comfortable to operate.
The 40-B140 Husqvarna battery’s dimensions are 132 mm (L) x 98 mm (W) x 117 mm (H). This compact format makes it straightforward to handle, fit and remove.
ActiveCool Technology
Heat management plays an important role in battery performance and service life. Husqvarna therefore equips the 40-B140 with its ActiveCool system.
ActiveCool provides efficient cooling during both charging and discharging. This is particularly useful during intensive applications and when using compatible fast chargers.
By managing battery temperature, Husqvarna ActiveCool helps maintain productivity in demanding conditions. Effective cooling also supports a longer battery service life.
Clear Battery Information at a Glance
Checking the remaining charge is quick and straightforward. An intuitive interface uses four LEDs to provide a clear overview of the battery’s charging status.
The interface also provides battery error information, helping users identify an issue without unnecessary guesswork.
Orange details improve the battery’s visibility in poor light, making it easier to locate amongst other equipment.
Part of the Husqvarna 36 V BLi-X System
One of the greatest advantages of the 40-B140 is its place within Husqvarna’s interchangeable 36 V BLi-X platform. A compatible battery can be moved between multiple tools rather than being dedicated to one machine.
The BLi-X system supports everything from regular domestic jobs to professional applications. Power options range from lightweight integrated batteries to higher-capacity backpack models. This flexibility makes it easier to select battery capacity around each job. Batteries can be swapped quickly, helping reduce interruptions when several charged units are available.
The 40-B140 lithium-ion battery is rechargeable up to 600 times, providing a practical long-term power source for compatible equipment.
Choose a Compatible Husqvarna Charger
We sell Husqvarna battery chargers separately, allowing you to select a model suited to your working routine. Compatible options include the Husqvarna 40-C500X, 40-C750X, 40-C80, 40-C250 and 40-USB150X.
We also offer the Husqvarna 40-C80 Charging Rail as an optional extra. This provides a useful charging solution for anyone building a larger cordless setup.
Manufacturer’s Warranty
Husqvarna is one of the world’s oldest and most respected garden machinery manufacturers. Today, the company is at the forefront of cordless technology.
For your added peace of mind, the Husqvarna 40-B140 Battery is backed by a two-year domestic warranty, while professional use is covered for one year.
Power Your Husqvarna Cordless Collection
The 40-B140 lithium-ion combines 144 Wh of energy with intelligent cooling, clear charge information and broad BLi-X compatibility. Its compact design makes it a practical choice for compatible handheld equipment.
Order the Husqvarna 40-B140 Battery today and enjoy flexible 36 V power across your compatible Husqvarna cordless tools.
Frequently Asked Questions
Q: How many times can the Husqvarna 40-B140 Battery be recharged?
The Husqvarna 40-B140 Battery is designed to be rechargeable up to 600 times. Its ActiveCool system helps manage temperature during charging and use, supporting reliable performance and battery longevity.
Q: Which chargers can I use with the Husqvarna 40-B140 Battery?
Compatible chargers we stock include the Husqvarna 40-C500X, 40-C750X, 40-C80, 40-C250 and 40-USB150X. The Husqvarna 40-C80 Charging Rail is also available to buy separately.
HUSQVARNA 40-B140 Battery (4 Ah) Technical Information
Battery
- Battery Voltage: 36 V
- Battery Capacity: 4 Ah
- Battery Energy: 144 Wh
- Battery Chemistry: Lithium-ion
- Battery Ecosystem: Husqvarna BLi-X 36 V
Dimensions & Weight
- Weight: 1.25 kg
- Height: 117 mm
- Length: 132 mm
- Width: 98 mm












Gwyn P Roberts –
Well priced, good quality. I