Makita BL4025 40V MAX XGT Lithium-Ion 2.5Ah

Makita BL4025 40V MAX XGT 2.5Ah Battery

The BL4025 is a compact, high-output 40V MAX (36V nominal) XGT lithium‑ion battery built for fast cycling and low fatigue. It pairs with XGT tools to deliver strong performance while minimizing weight and charge time.

Key Points

• Capacity: 2.5Ah (approx. 90 Wh)
• Fast charge: about 28 minutes with Makita DC40RA Rapid Charger
• Use case: frequent repositioning, overhead work, service calls, short-to-medium bursts
• Compatibility: all Makita 40V MAX XGT tools and XGT chargers (not for 18V LXT or 12V CXT tools)
• Protection: electronics monitor temperature, current, and voltage to help prevent overload and overheating

When to Choose the BL4025

• You prioritize light weight and fast swaps over longest runtime.
• Work includes ladder or overhead tasks (drilling, fastening, trimming) where reduced fatigue matters.
• Service and punch-list jobs with frequent stops/starts and frequent charging opportunities.

Consider Other Capacities If

• Extended runtime is critical: Choose BL4040 (4.0Ah) for about 60% more runtime vs. 2.5Ah.
• Maximum endurance per charge: Choose BL4050F (5.0Ah) for roughly double the runtime vs. 2.5Ah.
• Very high draw tools for long sessions: Larger packs reduce swap frequency on grinders, rotary hammers, and saws.

Runtime and Charging Strategy

• Expect roughly 60% of the runtime of a 4.0Ah pack and about 50% of a 5.0Ah pack, under similar conditions.
• For high‑load tools (e.g., 7" grinder), plan on shorter continuous run windows (often 10–20 minutes of sustained work per charge); intermittent use extends runtime substantially.
• Use a two‑battery rotation: one in the tool, one on the DC40RA. The 28‑minute charge often keeps pace with typical job cycles.

Compatibility Notes

• Works with all Makita 40V MAX XGT tools and XGT chargers (e.g., DC40RA, DC40RB).
• Not compatible with 18V LXT or 12V CXT tools. XGT and LXT platforms are not cross‑compatible for tool use.

Care and Storage

• Charge and use between moderate temperatures when possible (about 50–86°F / 10–30°C).
• For storage over a month, leave 40–60% charge (2–3 bars). Store cool and dry, away from direct sun.
• No “break‑in” required; a few normal cycles can help the fuel gauge calibrate.

Safety

• Use only Makita XGT chargers. Do not cover vents during charging.
• Avoid impacts, water exposure, and charging in extreme hot or cold conditions.
• Stop use if the pack is damaged, excessively hot, or swollen.

Quick Compare

Model	Capacity	Approx. Energy	Best For
BL4025	2.5Ah	~90 Wh	Lightweight, fast cycles, overhead/intermittent tasks
BL4040	4.0Ah	~144 Wh	Balanced runtime and weight for most tools
BL4050F	5.0Ah	~180 Wh	Longest runtime per charge for demanding tools

FAQ

• How long does it take to charge? About 28 minutes on a DC40RA Rapid Charger, depending on temperature and battery condition.
• Will it fit my 18V LXT tools? No. XGT batteries only power XGT tools.
• Is one battery enough? For continuous work, keep two BL4025 packs or pair a BL4025 with a higher‑capacity pack to minimize downtime.
• Cold weather performance? Expect reduced runtime; keep the pack warm until use and charge at room temperature when possible.
• Can I leave it on the charger? Chargers stop when full, but for storage it’s best to remove and store at partial charge in a cool, dry place.