Do not choose a replacement vacuum battery by voltage or capacity alone. Match the vacuum model, battery model, and connection type in the maker’s documents.
Check the vacuum and existing battery first
Write down the model number on the vacuum and the number printed on the battery. If the battery is removable, follow the manual to remove it before reading its label. Do not choose a replacement from the vacuum’s outside label or model name alone.
Next, use the maker’s product page or manual to confirm the battery model and connection type for that vacuum. Do not rely only on a seller’s “compatible” label. Check that the model and part number match the maker’s documents.
“10.8 V, 1.5 Ah” does not always mean the same battery
Makita lists both 10.8 V slide-style and plug-in batteries. Products in both groups may show 10.8 V and 1.5 Ah, but their model and part numbers differ.
| Example label | Connection type | Example part number | Example in maker documents |
|---|---|---|---|
| BL1015 | Slide style | A-59841 | Listed with the CL107FD SHW and CL108FD SHW kits |
| BL1015K | Plug-in | A-77855 | Listed on Makita’s 10.8 V plug-in battery page |
In this example, the voltage and capacity look similar, but the connection types differ. Check the maker’s documents for the exact vacuum before deciding whether a battery fits. Do not force a battery into a different connection or modify it.
Makita also lists different batteries with different CL108FD kits. The SHW kit lists a BL1015, while the STW kit lists a BL1050B. Do not assume another model fits just because it differs from the battery supplied with a kit; check the relevant model page or manual.
Match four items before ordering
Put these details side by side before choosing a replacement:
- Vacuum model
- Model number of the battery currently in use
- Connection type shown in the maker’s documents
- Model and part number of the battery you are considering
If any detail does not match, is unreadable, or cannot be confirmed in the maker’s documents, pause the order and ask the shop or maker. Capacity and price alone are not enough to select a battery. Do not assume that a third-party battery or a different connection type works with the vacuum.
This check does not diagnose why runtime has shortened or whether a battery has reached the end of its life. If runtime or charging indicators are the concern, check the manual for your model or contact the maker. If you are reconsidering the vacuum type or maintenance needs, see our cordless vacuum comparison.
We have not bought or tested the batteries discussed here. Model and part numbers reflect the maker pages checked on October 19, 2026. Current prices, stock, sellers, the latest fit for an individual vacuum, battery life, and performance are not verified.
