Recent content by larsenf

So I have a JBD BMS and it has 3 temperature sensors, the first is internal bms temp and the other two are contact sensors for the battery. The BMS always runs several degrees warmer than the rest of my system and that is the sensor that displays in venus os. Under Device->serialbattery->details...

lets do it, pmed you my contact

In console it shows connected to my bt bms but it does not show up in the GUI for me. I had a password set in the app, is that causing an issue? I am using a 200a JDB bms set to 18s. this is the bms im using...

Why would they need to be removed in the off season? Building a pack from cells is the most cost effective per kw and allows you to more easily hunt for deals. If you use a victron multiplus-II 48v/3000 120 you get super efficent 110v on the boat and it will give you 35a charging which can be...

Anyone have any updated info? I have a multiplus-ii 48/3000/35 and I have 20 cells, I was only planning to use 16s but now that I see input is 66v max I'm thinking of going bigger, my bms is good for 4s-21s. Once I get it hooked up to configure I can update but it would be nice to know now if...

Looks like the damage is only superficial. After charging the pack some they've come to rest at only a .004v difference. I am quite amazed as I got these very cheap and they had a sharpied date on them of July 2018 which is I assumed the date they were decommissioned and put into storage. I'll...

I have read all of ABYC standards regarding ac/dc electrical and bonding systems. Sorry I'm interchanging terms with earth and ground since this isn't a marine specific forum. I have completely redone my bonding system to current ABYC standards. I have not seen the new standards relating to...

Here is the roughed in set up. I will be building a cover for the batteries to properly mount the bms and balance leads. The 12v battery is a sealed agm for starting the engine and genset.

Hello the batteries were decommised from a california funded EV truck trial. They were used for 18 months and then decomissioned and have been stored disconnected outside but under cover in socal since 2017 without corrosion. I only had them on deck for 2 months while renovating my boat and...

Hello I have a 16s battery pack made from used Winston Thunder Sky 300ah lifepo4 cells. In the two months sitting outside on deck of my boat some terminals corroded (the worse is pictured). As you can see the negative terminal is copper and positive along with the nuts are aluminum. In a marine...