PLMEN underwater scooter 14.8V 10Ah customized waterproof rechargeable battery 

1.Water-resistant to 100 Meters

2.Contiuous discharge current 50~60A

3.High power 10C-15C battery cells

4.Rated Capacity 2000mah

5.Excellent safety and reliability

6.Quick-detachable 7.Fire rating V0

8.Complete protection function

9.OEM&ODM acceptable

Custom a waterproof battery will need to provide the following requirements details:
1.Battery voltage (V)
2.Battery  capacity(Ah)
3.Battery charge and discharge current.(A)
4.Battery usage:
5.Battery connector:
6.Battery size:
7.Battery waterproof level: (IP65 ,IP67,IP68)
8.Battery working environment.
Then PLMEN will design a suitable battery for your project.