How to extend the life of Hilti batteries
Li-ion batteries for Hilti tools last longer when you look after them. A few simple habits — around charging, storage and temperature — genuinely add cycles before a pack needs rebuilding.
Charging
- Don't run the pack to zero — top it up when about 20% is left.
- Use the original Hilti charger.
- Don't leave the battery on the charger for weeks "just in case".
Storage
- For longer storage, charge the pack to about 40–60%.
- Keep it in a dry place at room temperature.
- Every few months, check the charge level and top up if needed.
Temperature and use
Avoid charging and heavy use in frost or heat — extreme temperatures degrade cells fastest. Let a pack that's hot after work cool down before charging. Keep the contacts clean.
When capacity has already dropped
Even with the best care, cells wear out over the years. When runtime clearly shortens despite good habits, a rebuild restores full capacity for a fraction of the price of a new battery — with a 12-month warranty.
FAQ
- Can you overcharge a Hilti battery?
- The original charger and BMS protect against overcharging, but leaving the pack on the charger for months is not advisable.
- How should I store a battery over winter?
- Charge to about 40–60%, keep it dry at room temperature, and check the level every few months.
- Does frost harm Li-ion cells?
- Yes. Charging and heavy loads in frost speed up wear — let the pack reach room temperature first.