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Forum: Fountaine Pajot 28-06-2018, 13:58
Replies: 36
Views: 9,069
Posted By Terbonium
Re: DIY Lithium Bank Install

I didn't mean the imply float. I meant that there was no real way to hold the bank at a storage voltage and supply 12v loads from shore power.
Forum: Fountaine Pajot 28-06-2018, 13:19
Replies: 36
Views: 9,069
Posted By Terbonium
Re: DIY Lithium Bank Install

I can't argue with that logic. But we do live aboard, and do leave the dock on average weekly. Discharging to an ideal storage voltage would require some hands on time. Then isolating them and...
Forum: Fountaine Pajot 28-06-2018, 12:16
Replies: 36
Views: 9,069
Posted By Terbonium
Re: DIY Lithium Bank Install

CCGX makes it all happen :) They make a headless unit now, the Venus.. But, for the money, the CCGX makes total sense.

In fact, its bit above the scope of this thread, but I have our CCGX running...
Forum: Fountaine Pajot 28-06-2018, 07:51
Replies: 36
Views: 9,069
Posted By Terbonium
Re: DIY Lithium Bank Install

Yes, the REC-BMS has a CAN Bus that connects directly to the CCGX with native Victron protocol support. (https://www.rec-bms.com/datasheet/UserManual_ABMS_Victron.pdf) It communicates the desired...
Forum: Fountaine Pajot 27-06-2018, 16:02
Replies: 36
Views: 9,069
Posted By Terbonium
Re: DIY Lithium Bank Install

Just got around to adding the REC-BMS to the system. This is the perfect match for anyone using Victron equipment with their custom built battery bank. So nice now that the REC directly controls...
Forum: Fountaine Pajot 22-05-2018, 09:46
Replies: 36
Views: 9,069
Posted By Terbonium
Re: DIY Lithium Bank Install

Thanks, I'm happy to help and share what I've learned thru the process.

Battery Choice - Cost and cell manufacturer reputation were the two primary concerns here. There are various lithium...
Forum: Fountaine Pajot 10-05-2018, 06:59
Replies: 36
Views: 9,069
Posted By Terbonium
Re: DIY Lithium Bank Install

My REC just arrived yesterday and will be replacing my temporary BMS with it shortly.

Are you using a Victron charger? Is it connected to the BMS via CAN?
Forum: Fountaine Pajot 08-05-2018, 14:30
Replies: 36
Views: 9,069
Posted By Terbonium
Re: DIY Lithium Bank Install

Yep, that sounds ideal. I'd assume if the BMS or other systems fail the LVD/HVD would go to ground or float. That would be perfect.

7713 sounds like the perfect fit.
Forum: Fountaine Pajot 08-05-2018, 11:06
Replies: 36
Views: 9,069
Posted By Terbonium
Re: DIY Lithium Bank Install

The 7700 does appear to be a latching relay. Is there another series with the 7700 designation?

ML– Series
Remote Battery Switches (with manual control)
PN 7700 / PN 7702
Solenoid Switches...
Forum: Fountaine Pajot 07-05-2018, 16:21
Replies: 36
Views: 9,069
Posted By Terbonium
Re: DIY Lithium Bank Install

At the moment, its only role is LVD. No current flows backwards thru the device. The solar controller and inverter are connected directly to the battery. Yes, if the solar controllers or inverter...
Forum: Fountaine Pajot 05-03-2018, 10:54
Replies: 36
Views: 9,069
Posted By Terbonium
DIY Lithium Bank Install

Spent the weekend installing and wiring up our new Lithium Bank. 16x180aH CALB cells for a total of 720aH. ~ 600aH usable.

The best part is that the cells fit into the location of the 3 factory...
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