Makita 18V to Bosch 18V Battery Adapter Converter MT18BS
Makita 18V to Bosch 18V Battery Adapter Converter MT18BS
Use Your Makita 18V Batteries on Bosch 18V Cordless Power Tools
The MT18BS Li-Ion Battery Converter Adapter is an ingenious solution that lets you power your Bosch 18V cordless tools using the Makita 18V lithium-ion batteries you already own. Stop buying duplicate battery systems and get more run-time from your existing investment — one adapter bridges two trusted platforms effortlessly.
Made in Mainland China.
Compatible Makita 18V Li-Ion Batteries (Bottom Slot)
- BL1860B / BL1860
- BL1850B / BL1850
- BL1840 / BL1830B / BL1830
- BL1820 / BL1815
Compatible Bosch 18V Li-Ion Tool Batteries Replaced (Top Slot)
- BAT609, BAT610, BAT611, BAT612
- BAT618, BAT618G, BAT619, BAT619G, BAT620
- And most Bosch 18V cordless power tool platforms
Key Features
- Dual-platform compatibility — connects Makita 18V batteries to Bosch 18V tools
- Extended run-time — take advantage of high-capacity Makita packs (up to 6.0Ah)
- Nominal voltage: 18V (max initial voltage 20V, measured without load)
- CE Certified — meets European safety standards
- Compact & durable — black ABS plastic construction, approx. 11 × 10.5 × 9 cm
- No electronics required — purely mechanical adapter interface
Important Notes
- ⚠️ NOT for charging: This adapter cannot be inserted into any charger with a battery attached. Always use the original brand charger to charge your batteries separately.
- ⚠️ Disconnect when not in use to prevent battery over-discharge during long storage periods.
- Battery and tools are NOT included — adapter only.
Specifications
| Model | MT18BS / MT18BSL |
| Color | Black |
| Material | ABS Plastic |
| Dimensions | 11 × 10.5 × 9 cm |
| Voltage Range | 18V nominal (max 20V, no-load) |
| Certification | CE |
| Origin | Mainland China |
Package Contents
- 1 × MT18BS Battery Converter Adapter (adapter only — no battery or charger included)
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Frequently Asked Questions
Q: Will this Makita to Bosch battery adapter work with all Bosch 18V cordless tools?
A: The MT18BS adapter is compatible with most Bosch 18V Li-Ion cordless power tools that use BAT609, BAT610, BAT611, BAT612, BAT618, BAT619, BAT620 and related battery series. We recommend checking your specific tool model against the compatible battery list before purchasing.
Q: Can I charge my Makita battery while it is inserted in this adapter?
A: No. This adapter is not designed for charging. You must remove the Makita battery from the adapter and charge it using the original Makita charger. Attempting to charge through the adapter could damage your battery or charger.
Q: What Makita 18V batteries are compatible with this adapter?
A: The adapter is compatible with Makita 18V Li-Ion batteries including BL1860B, BL1860, BL1850B, BL1850, BL1840, BL1830B, BL1830, BL1820, and BL1815. Higher-capacity packs like the BL1860 can provide extended run-time on your Bosch tools.
Q: Is the battery included with this adapter?
A: No, the package contains only the MT18BS converter adapter. Batteries and tools are not included and must be purchased separately.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.