gregcope
Well-known member
I looked at the x2 BMS. Documentation inline seems sparse as in what relays it can drive (unless i missed something). Also part of the website has placeholder loreais text.
I looked at the x2 BMS. Documentation inline seems sparse as in what relays it can drive (unless i missed something). Also part of the website has placeholder loreais text.
thanks Poey, looks like an excellent piece of kit, well thought after and probably worth the money. May have to drop to 200Ah cells to stretch to it though :-(
It is, as far as I know, the only BMS (packaged with ancillary kit) designed specifically for the marine market.
The Tao Performance BMS is also designed for marine use. TAO Performance ‣ Lithium Battery & Energy Management System
I don't know what specifically makes a "marine BMS" though. As far as being suitable for marine use there are a few. Orion, good but expensive. Overkill Solar are good and not expensive. Electrodacus is what I chose, not on price but build quality and for the way it works. It can control virtually all Victron products which makes it great for marine use in my opinion. It is also the least expensive of the above mentioned BMS. No Fets to fail either.
I seriously considered the Electrodacus. But in the end went with JBD, which is the same hardware as Overkill, just without the support and properly written manual etc. I would have bought Overkill but he couldn't supply in time.
Electrodacus is very clever, but doesn't offer an out of the box solution. If all your devices can be controlled by external switching, great, otherwise you'll still need relays. Where it can work very cost effectively indeed is with 12v solar panels, since you can avoid buying charge controllers.
The price of a good solar controller like a Victron is little added to a LiFePo4 system. In my case all equipment is Victron so no relays needed.
The Overkill is a good choice for a typical BMS with the current passing through it. I have one I will use for a portable battery pack for an electric outboard for the dinghy.
For my main BMS I did not want the current to pass through it. The Electrodacus makes more sense to me.
All told my system will not be expensive. 900 US for batteries (400AH) delivered, 120 US for the Electrodacus, Victron 100/30, Victron Phoenix inverter (1200 watts @ 120 volts), and Victron 30 amp charger.
Yes these systems don't have to cost as much as some people think. My running total is up at £1042 for 280Ah cells, JBD BMS, 2x 40A MPPT, and a 3kw inverter. Plus another £150 or so on isolator and fuses etc.
The inverter is a big chunk of that expenditure, I could have saved a lot of money if I hadn't wanted to have the option of induction cooking on sunny days...
I haven't actually finished building the system yet. I've bought all the components (or at least I hope I have!) and have recently moved aboard the boat and am currently heading south, so finishing the system is somewhat on the back burner.Which JDB BMS do you use? Is this on a 12V pack and which 3kw inverter do you have? Do you have the induction cooker yet?
Looking to do something similar.
thanks for the pointer,It is a lot of cells for 24 volts.
As far as prices buy from a major Chinese distributor instead of a retailer that just adds profit for themselves.
Lythbattery.Com is who I deal with -on second order now. Prices less than half that of US retailers.
@Kelpie How are you driving the SSR in this instance?
Ideally i'd like 4 halfdead dirtcheap 60Ah lifepo4 cells to try and test it first...
planning for the next lockdown