A two-pack tool can accept a battery model yet still be unable to run with just one pack. Count and platform are separate requirements.
Recognize the X2 label
Makita identifies XSR01Z as a 36V (18V X2) LXT saw. It uses two 18V LXT batteries. The model page also specifies Star-symbol battery support and says the tool-only package omits batteries and a charger.
Check the complete set
If you own one BL1850B, you have only part of the required set for this saw. The checker reports a conditional battery-to-tool result and explicitly shows the required count. It does not reinterpret one pack as a fully working configuration.
Follow the product manual
Check the saw manual for pair selection, battery condition and charging instructions. Do not mix unverified pack types or modify a tool to bypass a battery bay.
Next step
Official sources
These source records were reviewed as of 2026-10-30; access methods differ. Open the latest manufacturer manual for your exact type, region and revision before use.
- Makita USA — XSR01Z product pageXSR01Z needs two 18V LXT batteries and Star symbol · curated_primary · Checked 2026-10-30
- Makita USA — BL1850B product pageBL1850B identity, 18V, 5.0Ah, Star Protection requirement · curated_primary · Checked 2026-10-30