LiFePo4 battery build
Posted: Thu Mar 07, 2024 6:50 pm
This topic is a redirect from " Rebuild a Kohler 7.5R generator" http://marinetteboat.com/forum/viewtopic.php?f=4&t=2002
This will cover the build of a "portable" LiFePo4 lithium battery whose intent is to be used on our 41' Marquis and a popup camper. That's why it's called "portable. It's assumed (terrible word... ) that if we're on the boat (it's most needed locale), we won't be needing it on the popup camper - and - when we're using the popup camper, the boat will be at the dock with a stable shore power supply.
I'm including a series of pics and other information should there be someone inclined to build their own battery.
Battery specs:
- 280Ah
- 12 volt
- 110AC usage - via a Xantrex 2000W inverter / charger with wired remote unit
Intended use - to power the boat's and camper's (depending on usage) refrigerator(s) 2 on boat - 1 on camper
Wattage requirements -
Main boat fridge/freezer - 4.8Cu ft Magic (75w)
Upper station fridge/freezer - (70w)
Popup - 1.9 Mini fridge/freezer - 75w
Additional AC power needs COULD be utilized, but the intent is to stretch battery power for the fridges/freezers.
In either case there will be several days available power solely from the battery.
** There will be several alternative sources to recharge the battery:
(this is just for the boat. The popup is a separate listing. Ask if you'd like more info.)
- AC Shore Power/Genny via the Xantrex inverter charger,
- Engine alternator power via connection to the house battery that feeds a 20Amp DC to DC Victron charging unit,
- Solar power via 2 - 200W solar panels
If you have any questions, please feel free to ask!
Bill
This will cover the build of a "portable" LiFePo4 lithium battery whose intent is to be used on our 41' Marquis and a popup camper. That's why it's called "portable. It's assumed (terrible word... ) that if we're on the boat (it's most needed locale), we won't be needing it on the popup camper - and - when we're using the popup camper, the boat will be at the dock with a stable shore power supply.
I'm including a series of pics and other information should there be someone inclined to build their own battery.
Battery specs:
- 280Ah
- 12 volt
- 110AC usage - via a Xantrex 2000W inverter / charger with wired remote unit
Intended use - to power the boat's and camper's (depending on usage) refrigerator(s) 2 on boat - 1 on camper
Wattage requirements -
Main boat fridge/freezer - 4.8Cu ft Magic (75w)
Upper station fridge/freezer - (70w)
Popup - 1.9 Mini fridge/freezer - 75w
Additional AC power needs COULD be utilized, but the intent is to stretch battery power for the fridges/freezers.
In either case there will be several days available power solely from the battery.
** There will be several alternative sources to recharge the battery:
(this is just for the boat. The popup is a separate listing. Ask if you'd like more info.)
- AC Shore Power/Genny via the Xantrex inverter charger,
- Engine alternator power via connection to the house battery that feeds a 20Amp DC to DC Victron charging unit,
- Solar power via 2 - 200W solar panels
If you have any questions, please feel free to ask!
Bill