Hero Electric — hero electric photon li

Address:

411033

I have been using this hero electric photon li since last one year it had good performance however 2 times it happened suddenly on road it stopped working the battery was full and suddenly it drops down i can't put head lights i can blow horn can not give right left signal as if battery is down i stay in chinchwad and regularly serviced photon as per scheduled given by hero
1st time it happened we called local dealers technician and he fixed it
This time also we have to call local dealer technician only he will come after 2 days i have to keep my e bike road side which is very risky

Can you please help on this why would that bike will suddenly stop working in spite serviced regularly it leaves me in real vulnerable situation since never expect such thing will happen with hero e bike which is higher end model photon li
Can you please help me to fix this issue it happened 2 time in last 6 months