mvweebles
Guru
- Joined
- Mar 21, 2019
- Messages
- 7,682
- Location
- United States
- Vessel Name
- Weebles
- Vessel Make
- 1970 Willard 36 Trawler
I'm just getting around to final setup of the AB Aluminum 10'6" RIB with Tohatsu 20hp (with electric start/tilt). Looking for ideas on battery selection, placement, and protection. My model of RIB does have the bow-box (also aluminum), though the cables on the OB would need to be extended. With 3-gal fuel, not a ton of room in the bow box.
I came across this small form factor LiFePO4 battery for motorcycles by Antigravity. Never heard of them, but they are US-based and appear to cater to motorcycle custom/race segment where size and weight are important (2.5lbs in 6" x 3.5" x 3.5" case).
https://antigravitybatteries.com/products/starter-batteries/restart-oem/atz10-rs/
QUESTIONS:
1. LifePO4 for starter on 20hp? Guessing same as the small start-packs that I see at stores. Claims 360 CA (cranking amps).
2. Where to mount? I could mount forward in the bow-storage, but that would limit me to a 3-gal tank. Plus cables would need extending. Given the small size of the battery, was thinking attaching to inside of transom.....but that's hardly a dry spot. Maybe an enclosure such as a waterproof junction box such as THIS ONE? Maybe with a vapor-tight thimble to run the cables?
Thanks in advance -
Peter
I came across this small form factor LiFePO4 battery for motorcycles by Antigravity. Never heard of them, but they are US-based and appear to cater to motorcycle custom/race segment where size and weight are important (2.5lbs in 6" x 3.5" x 3.5" case).
https://antigravitybatteries.com/products/starter-batteries/restart-oem/atz10-rs/
QUESTIONS:
1. LifePO4 for starter on 20hp? Guessing same as the small start-packs that I see at stores. Claims 360 CA (cranking amps).
2. Where to mount? I could mount forward in the bow-storage, but that would limit me to a 3-gal tank. Plus cables would need extending. Given the small size of the battery, was thinking attaching to inside of transom.....but that's hardly a dry spot. Maybe an enclosure such as a waterproof junction box such as THIS ONE? Maybe with a vapor-tight thimble to run the cables?
Thanks in advance -
Peter