How to Charge & Care for Your Electric Skateboard Battery – Make It Last Longer (Switzerland 2025)

The battery is the heart of every electric skateboard.
It determines performance, range and lifespan – and it's the most expensive component.
With the right charging and care habits, your battery will last years longer and keep delivering full power.

How does an e-skate battery work?

ONSRA uses lithium-ion cells (Samsung 50S) with a high-precision BMS (battery management system).
The BMS protects against overcharging and deep discharge and keeps cell voltages balanced.
But even the best battery ages – how you treat it decides how long it lasts.

How to charge your battery properly

1. Always charge at room temperature.
   Never straight after a ride while the battery is still hot.

2. Charge to about 80 % for everyday use.
   Only go to 100 % before long rides.

3. Never run it completely flat.
   Going below 10 % harms the cell chemistry.

4. Use the original charger.
   Wrong voltage = lifespan cut in half.

5. Don't leave it charging unattended.
   Lithium batteries don't belong on an overnight charge in your living room.

Battery care in winter

Swiss winters are tough – and cold kills capacity.

• Don't store or charge below 0 °C.

• Ideal: 40–60 % charge and room temperature.

• Don't charge straight after riding in sub-zero temperatures.
  → Let it acclimatise first, otherwise you risk cell damage.

• If you're not using it, top up the battery briefly every 2–3 months.

Common mistakes that ruin batteries

• Constantly charging to 100 % and leaving it sitting

• Long periods of deep discharge (e.g. a winter break without topping up)

• Moisture from riding in the rain + charging immediately

• Cheap chargers that aren't BMS-compatible

These are the classics behind 60 % of all battery damage – and all avoidable with five seconds of discipline.

ONSRA battery systems at a glance

All batteries are replaceable, BMS-protected and modular.
No throwaway tech – Swiss engineering built for a long service life.

When should you replace the battery?

• Noticeable range loss of > 30 %

• Strong voltage fluctuations when accelerating

• Charging takes twice as long as it used to

• The battery swells or smells unusual → stop using it!

ONSRA offers replacement and upgrade batteries directly – just get in touch.

Conclusion

With the right care, your batteries will last thousands of kilometres.
Whether it's a ZENO, BLACK Carve 3 PRO or VELAR –
the heart beats longer when you treat it right.

A battery isn't just a battery – it's a system that combines performance, safety and fun.
Look after it like you look after your board – and you'll feel the difference.