This should be the final report on the installation of LiFePo4 Batteries on Eximius.
- New Batteries - Installed
- Solar Controller - reprogrammed
- Victron Multiplus - reprogrammed
- DC to DC charger - need to reprogram - set the source voltage to start and stop charging.
- Balmar MC 618 Alternator External Regulator - need to program for LiFePo4 profile.
- Install Battery Restraint System.
- Secure Ancillary fuse holders within Battery Bay
That shouldn't take long, installing the battery restraint system will take the most time. The new batteries are less than 1/3rd of the mass of the old Trojan T105's but they still need to be secured to stop them moving around in heavy seas. The plan is to use one of three methods. Aluminum Bars to hold the batteries in position. Use webbing straps to secure the batteries to the battery bay and, lastly, to secure them in position using plastic wedges that fit the battery bay really well with no chance of coming out of position.
The old batteries were held down by a framework of Aluminum 1.5" 1/4" angle, but they were showing lots of corrosion from the Acid in the batteries that vented out. There's no acid in the LiFePo4 batteries so that should not be a problem I have plenty of Aluminium square tubing, it's easy to cut and bolt together.
The plastic wedges are an easy solution but not as secure as the metal or webbing option. I'll take materials to cover both choices
Another Monday visit to the boat.
We have 3 projects to complete before our next sail: Complete the battery install, Rebed the Chainplates at the Deck on both sides, scrub down the boat to clean off the grot that was left behind after the major flooding that occured in Fort Lauderdale this past week.
So maybe we'll be ready by the end of the week.
Tuesday April 19th.
Pretty much wrapped up this upgrade!
DC to DC charger programming is complete.
Battery Restraint System installed
Last thing to do is to secure the Fuse holders for the Balmar +ve Sensing wire, the other fuse holder is now obsolete, it was the Sensing wire for the old Lynx External Regulator that has been removed.
The solution is to secure it to the top of the LiFePo4 battery using 3M VHB double sided tape.

A seond pic showing the same area, the -ve Busbar is on the right, it's cover is installed.
Here's a pic showing the battery restraint method.
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