Video will cover a 48V Duffy 18 being converted to run on one 48V 90Ah Lithium Battery By UNO, MFG in USA, The UNO Battery is waterproof with a rating of IPX6. The original eight 6V deep cycle golf cart batteries (GC2) are removed and the UNO battery located behind the rear bench because it is much smaller and can be closer to the electric motor controller. This location reduces long original cable lengths and results is less voltage drop from battery to controller. The UNO battery kit comes with battery, charger, connectors and an app to monitor the state of charge. Credit to Nikolay @ NIX Yachts in San Diego 619-508-3995 Deep Cycle Battery San Diego stocks UNO Battery and offers mobile service. 619-448-5323 Original lead acid battery capacity was 9.5kWh - with a total weight of 480lbs . UNO battery capacity 4.6kWh and weighs 48 lbs, zero maintenance, 10 year warranty Equipment / Parts Used for Job: One UNO Battery Kit - charger included One Victron BMV-712 Battery Monitor https://amzn.to/3N0bQI2 Two 48V/12V DC/DC convert to run the cabin and navigation 12V lights, stereo, etc Two 30A fuses One 100A circuit breaker Tinned copper wire SAFETY PRECAUTIONS CAUTION: Working with and installing electrical equipment is dangerous. Potential hazards include, but are not limited to electrocution and electrical fires. Always consult a licensed marine electrician when installing any electrical equipment. Camera Phone to Film Video Pixel 3 XL used Editor: Kinemaster ------------------------------------------------------------------------------------------ Disclaimer: The above product links are affiliate links. That means that I am awarded a small commission from the vendors that is invested in making product videos - thank you Link to DCB retail/wholesale business https://deepcyclebatterystore.com/duffy-boat-battery/ We do our best to answer emails, but never enough time... Sandiegosolarandgolf@gmail.com