diff --git a/Battery.md b/Battery.md
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 Most of the Hoverboard mainboards use a 10S2P LIPO Batteries (36v Nominal - 42v Charged ).<br>
 If you want to use a battery with less or more cells in series, change BAT_CELLS parameter in [config.h](https://github.com/EmanuelFeru/hoverboard-firmware-hack-FOC/blob/master/Inc/config.h) (10 by default).<br>
-Batteries up to 12S have been used safely in the community, but do it at your own risk.
+Batteries up to 12S have been used safely in the community, but do it at your own risk.<br>
+Below 30v, it could be that the power ON button doesn't work anymore, but the threshold can differ depending on how your board is built.
 
 ## :electric_plug: Charging
 You can charge the battery through the mainboard pcb or connect the battery directly to the charger through a custom xt60 adapter.