Replacement for Black and Decker 18V Battery 4800mAh 2Pack - Long Run

In this review the focus is on a practical, no-frills replacement battery pack for Black and Decker 18V cordless tools. The two-pack of Ni-Mh cells offers a clear reason to consider it: a higher 4800mAh capacity that aims to extend run time for older tools. For anyone who needs a direct, widely compatible swap for HPB18 and related models, this review explains how the pack performs, what to expect from durability and safety features, and where it fits best in a homeowner or hobbyist toolkit.

Key Features

• 4800mAh Capacity: The upgraded capacity provides noticeably longer run times compared with many original lower-capacity packs, reducing the need for frequent battery swaps during yard work.
• Wide Compatibility: Works with a long list of 18V Black and Decker cordless tools and chargers so users can replace older HPB18 style packs without adapter hassles.
• Ni-Mh Cells: High-quality nickel metal hydride chemistry means no severe memory effect and flexible charging habits without quick loss of capacity.
• Safety Protection: Built-in over-discharge, overload and short circuit protections offer reassurance for homeowner use and help preserve tool electronics.
• Value Two-Pack: Supplying two batteries in one purchase delivers an immediate spare so one battery can charge while the other runs, improving workflow for longer jobs.

Who It's For

This pack is best for homeowners, landscapers with older tools, and DIYers who rely on Black and Decker 18V cordless equipment such as trimmers, drills and saws and want an affordable way to restore or extend tool life. It is especially useful when a spare battery is needed to avoid downtime while charging.

It is less ideal for those who require the absolute longest runtime per charge available from modern lithium packs or for users who need official factory warranty replacements tied to a specific toolmaker program. Buyers who prefer lithium technology for lighter weight should look elsewhere.

Pros & Cons

Pros

• Higher 4800mAh capacity gives longer practical run times for many 18V tools.
• Comes as a two-pack, providing immediate backup and better value than single cells.
• Broad compatibility covers many HPB18-series models and related product codes for easy replacement.
• Design includes safety protections to guard against over-discharge and short circuits.

Cons

• Some users report mixed battery life in practice, with a minority seeing faster discharge in heavy use scenarios.
• As a Ni-Mh pack, it is heavier and offers lower energy density compared with modern lithium alternatives.

Specifications

Battery Type	Ni-Mh
Voltage	18V
Capacity	4800mAh
Watt Hours	86.4Wh
Pack Quantity	2 Packs
Compatibility	HPB18, HPB18-OPE, FSB18 and many 18V Black and Decker cordless tools

Our Verdict

The two-pack 4800mAh Ni-Mh replacement is a sensible, cost-effective choice for owners of older Black and Decker 18V tools who need reliable runtime and a spare battery. It delivers excellent compatibility and built-in safety features for everyday yard and workshop tasks, though those seeking lighter weight or the longest possible runtime per charge should consider lithium alternatives.

Frequently Asked Questions

Will this battery fit my HPB18 trimmer?
Yes, it is designed as a direct replacement for HPB18-style 18V packs and lists broad compatibility with many related models.

Are these cells safe to use with the original charger?
They are fully compatible with typical 18V chargers for the listed tool family and include protections for over-discharge and short circuits, but always follow the charger's manufacturer guidance.

How many batteries are included?
This product ships as a two-pack, providing an immediate spare so you can charge one while the other is in use.