During voltage fluctuations or low voltage, is it safe to charge my Ola Scooter and will the battery get charged? Ola's portable charger has inbuilt surge protection of up to 6KV (for a few microseconds). It can handle a majority of scenarios related to voltage fluctuation. Even if voltage fluctuation goes beyond 6KV, the charger will automatically shut down. Now that's power! Comments 0 comments Article is closed for comments.