I’m switching my boat over to lithium. 4 Epoch 24 230 batteries. It has 8 12v 200ah AGMs. at the end of there life. To start with each battery positive I plan a MRBF fuse at 150 amps. Short equal cables to the Lynx Power in. Then the Lynx shunt. Then the LYNX CLASS-T with two cable drops fused at 300 amps each, for two MultiPlus 2 3000 70 inverter chargers. Then a Lynx Power Distribution for Dc loads, fused correctly.
Can I use the LUNX CLASS-T in this fashion? Using the outbound cable heading to the inverter charger?
Should THE LYNX POWER IN, The first unit in my bus bar, be replaced with two LYNX CLASS-T units, fusing each battery cable with a 150–200 amp T fuse?
Are the Epoch batteries, a good choice?
OGPS
(Ed @ Off-Grid Power Systems - offgridps.com)
2
Yes, but I would instead suggest you use it on the inbound side from the batteries. You can still use the MRBF fuses at the battery terminals to protect the wire from the battery terminals to the Lynx bus bars, but the interrupting current of an MRBF fuse at 24V is insufficient in my personal opinion. What you want to protect from is direct short circuits since lithum batteries can supply an enormous amount of current if shorted. This method eliminates the need for the other Lynx PIN. Using this method, you can use standard MEGA fuses for the inverters in a Lynx Distributor if you wish.
It’s probably not my place to give such an answer except to say our testing of their Elite V2 24V batteries went very poorly. The battery and its internal BMS is made by RoyPow and we had so many problems that we had to stop selling these batteries. Even without using their communication (which caused the most problems), the batteries would sometimes not turn on and sometimes turn themselves off. If there was any current on the DC bus ahead of turning on the batteries (i.e. from an MPPT or DC output of a MultiPlus), the batteries would usually, but not always, immediately turn off. I have been told that most of these issues have been resolved in subsequent firmware releases, but I would suggest you pointedly ask your Epoch dealer about these specific issues before you purchase. I REALLY wanted to like these batteries but ultimately had to remove them from the installations we used them in. This occurred in early 2025 so hopefully things have gotten better. It was a terrible product introduction, however.
I would also caution you against using the Lynx Shunt. You can search the forums for reasons why, but here are the two biggest problems:
It is very inaccurate and can drift upwards of 30% SoC (as compared to Victron’s better battery monitors or the ones from battery BMS’s) in just four or five battery cycles. I do not recommend relying on a Lynx Shunt to control AC input or to start/stop a generator since its SoC reporting is so poor.
It doesn’t include DC consumption in consumption figures on VRM
Even though it’s a little more clunky during installation, I would recommend using a Victron SmartShunt instead. It is very accurate.
I hope this helps
OGPS
(Ed @ Off-Grid Power Systems - offgridps.com)
3
I should have suggested one other approach. Use a Lynx Class T PIN, a Lynx Smart BMS NG, and Victron 24V 300Ah batteries. Yes they are more expensive - especially in the USA with all the stupid tariffs - but you really do get what you pay for. The BMS works and you won’t have any of the issues I mentioned above. If you’re cruising in open water, I would opt for something that is bulletproof. The battery monitor inside the Lynx BMS is superb.