Keep your 12V tools light and long-lasting with the Makita BL1041B 4.0Ah battery. Built for the 12V max CXT platform, this compact Li-ion pack delivers dependable runtime without adding bulk. An onboard LED fuel gauge lets you check charge in seconds, and it’s compatible with Makita DC10 series chargers for quick turnarounds between tasks.

Key features

• 4.0Ah capacity for extended runtime in a compact form

• 12V max CXT slide-type design—secure fit, balanced handling

• On-board LED fuel gauge to monitor remaining charge

• Fast-charge compatible with Makita DC10 series chargers (model-dependent)

• Durable Li-ion chemistry with low self-discharge

Tech specs

• Platform: Makita 12V max CXT (10.8V nominal)

• Capacity: 4.0Ah (≈43–45Wh)

• Chemistry: Lithium-Ion

• Model: BL1041B

• Approx. weight: ~0.35–0.4 kg (battery only)

Compatibility

• Works with all Makita 12V max CXT slide-type tools (e.g., HP331/TD110/CLX combos, etc.)

• Charger compatibility: DC10SB, DC10WD and other Makita DC10 series chargers

What’s in the box

• 1 × Makita BL1041B 4.0Ah battery (tool/charger not included)

Why choose it

• Longer runtime than 2.0Ah packs with minimal weight increase

• Built-in gauge reduces downtime and guesswork

• Genuine Makita performance for compact CXT tools

Short versions

Top-of-page blurb:
Compact 4.0Ah Li-ion battery for Makita 12V max CXT tools with LED fuel gauge and fast-charge support.

Meta/SEO (≤160 chars):
Makita BL1041B 12V max CXT 4.0Ah battery. Compact, long-lasting power with LED fuel gauge. Compatible with Makita DC10 chargers and all CXT tools.

GMC bullets:

• Makita BL1041B 12V max CXT 4.0Ah battery

• On-board LED fuel gauge

• Fast-charge compatible (DC10SB/DC10WD)

• Fits all 12V max CXT slide-type tools

• Genuine Li-ion performance, compact size