Black+Decker BL4018-XJ 18 V 4.0 Ah Lithium-ion Battery

The Black+Decker BL4018-XJ is an 18 V, 4.0 Ah lithium-ion battery designed for compatible Black+Decker cordless power and garden tools. It supplies energy for household, workshop, and garden tasks such as drilling and trimming. The 4.0 Ah capacity provides extended runtime compared with lower-capacity alternatives, making it suitable for sustained DIY projects. Lithium-ion chemistry delivers consistent power throughout the discharge cycle. The battery slots directly into the existing Black+Decker 18 V tool ecosystem, powering a range of equipment.

Weighing 860 g, the unit adds mass that helps balance equipment during prolonged use. The slide-pack form factor snaps securely into compatible tools and charging docks. It works with a wide range of Black+Decker 18 V Li-Ion cordless models. The black, grey, and orange housing matches the brand's standard tool aesthetic. Because a charger is not included, buyers must use an existing compatible power supply or purchase one separately.

• Two-hour recharge time – minimises downtime between work sessions.
• Up to 60 minutes of operating time – varies depending on the specific tool and workload.
• Compatible with specific models – including GTC650L, GKC1820L, GLC1823L, and STC1815.
• No memory effect – allows recharging at any time without reducing overall capacity.
• Single battery packaging – provides a standalone replacement or spare unit.