Hilti B22 rebuild step by step
A Hilti B22 battery rebuild is more than swapping cells — it's a full service process that ends with testing and a warranty. Below we show what happens to your pack from diagnostics to return, and how long it takes.
The process in 6 steps
- Electronics diagnostics — assessment of the cells, BMS, temperature sensor and connections.
- Fault repair — BMS, thermistor or contacts, if a problem is found.
- Cell replacement — the whole pack is replaced with new cells (Samsung / LG / Sanyo).
- Spot-welding and assembly — professional nickel-strip welds inside the original housing.
- BMS programming — resetting the counters and calibrating to the new cells.
- Final test — capacity measurement and a charge/discharge safety check.
How long it takes
A standard turnaround is 2–5 business days, counted from when the battery reaches the workshop. After the final test, the pack comes back to you with a written 12-month warranty.
How to order a rebuild
- Fill in the form on the site and send the battery.
- Or include your contact details and return address with the parcel.
- Questions before shipping? Write to us — we'll help scope the work.
FAQ
- How long does a Hilti B22 rebuild take?
- Usually 2–5 business days from the moment the battery reaches the workshop.
- Do you keep the original housing?
- Yes. We replace only the cells and, if needed, electronics parts — the housing, contacts and tool compatibility stay original.
- How do I send the battery?
- Secure the pack and include your contact details or the order form. Shipping details are in the contact section.