in preparation 40V MAX (36V nominal)
Makita 40V XGT · Slide-on pack
4.0Ah replacement battery cross-referenced to BL4040
A 4.0Ah / 144Wh slide-on pack for the Makita 40V XGT interface, built for distributors and private-label brands — your branding on the housing, no third-party logos.
- Rated capacity
- 4.0Ah
- Rated energy
- 144Wh
- OEM reference
- BL4040
- MOQ
- 1,000+ pcs per SKU
Rung 2 of 4
Where the 4.0Ah sits in the range
The mid-range XGT capacity and the practical starting point for most 40V programmes. Enough runtime for the high-draw tools the platform exists to serve, without the freight class of the packs above it. If you are trialling XGT in a channel, this is the capacity to trial it with.
At 144Wh this pack sits in the 100–160Wh band: air freight is possible but needs carrier approval and Class 9 handling. Sea freight is the usual route for volume orders.
Technical overview
Product specification
Cell grade, fuel-gauge behaviour and protection thresholds are confirmed per programme during sampling — the values below are the platform baseline.
Full Makita 40V XGT series| Product type | Lithium-ion replacement power tool battery pack |
|---|---|
| Compatible platform | Makita 40V XGT |
| Voltage | 40V MAX (36V nominal) |
| Rated capacity | 4.0Ah |
| Rated energy | 144Wh |
| Compatible reference | BL4040 |
| Form factor | Slide-on pack |
| Continuous discharge | Per specification (up to 15C) |
| MOQ | 1,000+ pcs per SKU |
Engineering
How this pack is built
- 01
XGT uses a 36V nominal architecture and its own interface; packs are not cross-compatible with 18V LXT tools.
- 02
Every capacity above 2.5Ah exceeds 100Wh, so air freight falls under fully regulated UN3480 rather than the relaxed small-cell provisions.
- 03
Cell selection and BMS thresholds sized for the higher bus voltage and the larger tools on this platform.
- 04
UN38.3 test summary and MSDS prepared per SKU, since the freight class differs across the range.
Every capacity in this series ships under your own label — artwork, housing colour, packaging and pack configuration are specified per programme.
Private-label optionsSame series
Other capacity options
Need pricing, samples or custom packaging?
Send expected quantity, target market and branding requirements for the 4.0Ah (BL4040). Engineering reply within 1 business day.