Shark Shield Pty Ltd

If the battery only lasts for 4-5 hours, how would you know when it's turned on and when it runs out of battery?

The Ocean Guardian has LED indicators as well as an audible sound to let you know when you have only 10 mins left of battery life, this is the case for all Ocean Guardian products.

If you are surfing more than 3 hours, then you could have 2 FREEDOM+ electronic units to switch into your board, or we will also have a 12V car charger as an optional accessory. Charge time is expected to be around 1 hour (these specs are preliminary as we finalise product design).

Only the new FREEDOM+ Surf has a 12v DC car/boat charger, unfortunately we do not have a car charger solution for the FREEDOM7 or SCUBA7