Green Cell HP142ULTRA battery

The Green Cell HP142ULTRA battery is a replacement battery designed for HP laptops, including models 240 G6, 245 G6, 250 G6, 255 G6 and the HP 14-BS, 14-BW, 15-BS, 15-BW, 17-AK, 17-BS series. Part of the Green Cell PRO ULTRA line, it is built using Panasonic cells with lithium polymer (LiPo) technology and a 3400 mAh capacity, delivering extended runtime and reliable operation while maintaining compatibility with original laptop fittings.

Advantages

Green Cell ULTRA batteries use high-energy-density Panasonic cells to provide longer working time compared with many original accumulators. Advanced onboard electronics improve efficiency, ensure stable performance and include safety protections. The HP142ULTRA offers a practical combination of durability and consistent power delivery in a black housing suitable for portable use.

Suitable for (tasks / use cases)

• Replacing a worn or failed original battery in supported HP laptop models
• Extending mobile working time for daily office tasks and web browsing
• Using as a spare battery for travel or field work

Key specifications

• Battery technology: Lithium Polymer (LiPo)
• Capacity: 3400 mAh
• Compatibility: HP 240 G6, 245 G6, 250 G6, 255 G6; HP 14-BS, 14-BW, 15-BS, 15-BW, 17-AK, 17-BS
• Colour: Black
• Manufacturer model: HP142ULTRA (Green Cell)

How to use

Power off the laptop and disconnect the charger. Remove the old battery following the laptop manufacturer's instructions, then insert the Green Cell HP142ULTRA battery into the battery bay until it clicks into place. Reconnect the charger and switch on the laptop. Allow the new battery to charge fully before first use to calibrate charge reporting.

Recommendations

For safest operation, use the battery within the laptop’s specified temperature range, avoid prolonged exposure to high heat, and store the battery at around 40–60% charge if not used for extended periods. If uncertain about installation, consult a technician or the laptop manual.