Hiboy S2, S2R, S2 Pro, S2 MAX, KS4, KS4 Pro, S2R Plus and MAX Pro error codes · Hiboy S2 series

E5 Error on Hiboy S2 series

What it means + how to fix it From the brand

Quick answer

E5 on the Hiboy scooters (S2, S2R, S2 Pro, S2 MAX, KS4, KS4 Pro, S2R Plus, MAX Pro) means “Low-voltage protection.” Most likely cause: the battery is low or has been run down too far. Try this first: charge with the original charger.

Try this first

Free, and each takes under 5 minutes.

Charge with the original charger
Switch off and restart

In plain English

The scooter cuts or limits power to protect the battery when it gets too low. Charging usually clears it. If it shows soon after a full charge, the battery or charger needs checking.

Step-by-step checklist

Work from the top. Steps go from free and easy to shop jobs. Switch the scooter off before touching any connector. Tick each step as you go. Your progress is saved on this device.

1Charge with the original chargerFree Charge with the charger that came with the scooter, on a hard surface away from anything flammable, and stay nearby. Never use a different charger.
2Switch off and restartFree Turn the scooter off, wait 30 seconds, then turn it back on. If the code clears, note what you were doing when it appeared, in case it comes back.
3Contact support or a service centerShop job If the code stays after these checks, stop riding and contact the brand's customer support or an authorized service center. Don't open the deck, battery, controller or motor: most scooter batteries and controllers aren't user-serviceable.

Still not fixed?

Pages to try next:

All Hiboy scooters (S2, S2R, S2 Pro, S2 MAX, KS4, KS4 Pro, S2R Plus, MAX Pro) codes

When it's time for a shop: if you've worked through every step and the problem is still there, contact the brand's support or an authorized service center. Bring your notes on when it happens, plus the code.

Words on this page: Controller