Solar batteries

If OP is asking about domestic lithium batteries designed for house power supply with large PV arrays. I have not ever seen any removed form domestic situations. I have heard of car EV batteries being removed dead. If these batteries are composed of easily dismantled individual cells. (batteries are usually built to do 300+ volts.) Then if you could determine the health of individual cells and find some decent cells then a battery for a boat could be built up. You need 4 cells in series. Or possibly 3 cells depending on voltage of the cells. You would then need to set up a charge controller to ensure charge cut off when charged and cell balance also over current control. You might need to build 2 or more batteries to get real power at 12v for a boat. 24v would be better. All very interesting if you can find an old battery. ol'will
 
Frayed Knot said:
Then you’ll need to find someone willing to insure it. Good luck with that. 😂
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This is a much touted opinion, so I had a chat with my broker about it, as I’m probably going lithium when my lead acids die. He said that he’s never encountered the question from an insurance company. They apparently do realise the difference between lithium ion and LiFePO4. And know that people with boats tend to be cautious about such things. I’ll probably fit Fogstar batteries, not some unbranded stuff off ebay. Not that ebay stuff is automatically bad, but you just don’t know. Caution….
 
Chiara’s slave said:
This is a much touted opinion, so I had a chat with my broker about it, as I’m probably going lithium when my lead acids die. He said that he’s never encountered the question from an insurance company. They apparently do realise the difference between lithium ion and LiFePO4. And know that people with boats tend to be cautious about such things. I’ll probably fit Fogstar batteries, not some unbranded stuff off ebay. Not that ebay stuff is automatically bad, but you just don’t know. Caution….
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I had an email directly from my insurance company explicitly instructing me to contact them before installing any form of lithium batteries on the boat. I wonder if your broker got that?

I spent a rather interesting couple of hours watching the YouTube channel The Mariner, all about rigging preventors, but the message is the same, make sure you take decisions about things based on fact not what somebody thinks. In your case your broker.
 
Chiara’s slave said:
This is a much touted opinion, so I had a chat with my broker about it, as I’m probably going lithium when my lead acids die. He said that he’s never encountered the question from an insurance company. They apparently do realise the difference between lithium ion and LiFePO4. And know that people with boats tend to be cautious about such things. I’ll probably fit Fogstar batteries, not some unbranded stuff off ebay. Not that ebay stuff is automatically bad, but you just don’t know. Caution….
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There was a long thread about this recently, OP told LifePO4 had to be professionally installed.
 
Sandy said:
I had an email directly from my insurance company explicitly instructing me to contact them before installing any form of lithium batteries on the boat. I wonder if your broker got that?

I spent a rather interesting couple of hours watching the YouTube channel The Mariner, all about rigging preventors, but the message is the same, make sure you take decisions about things based on fact not what somebody thinks. In your case your broker.
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I’ve never had any previous correspondence from my insurer Pants regarding lithium installations. It was only when I informed them of my ‘upgrade’ did I get their view that everything had to be a professional install or certified by a suitably qualified person. There must be 100s of ‘amateur’ installations cruising the oceans (without a problem). Maybe they will see the light.
 
Considering 99% of the worlds lipo batteries are made in China it's choosing a brand which is reptible and have been trading for a while ... Most now come with a decent warranty so not such a minefield
 
Chiara’s slave said:
This is a much touted opinion, so I had a chat with my broker about it, as I’m probably going lithium when my lead acids die. He said that he’s never encountered the question from an insurance company. They apparently do realise the difference between lithium ion and LiFePO4. And know that people with boats tend to be cautious about such things. I’ll probably fit Fogstar batteries, not some unbranded stuff off ebay. Not that ebay stuff is automatically bad, but you just don’t know. Caution….
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I personally would check the insurers website and T&Cs carefully - and/or ask the broker to put formally in writing their view that a DIY lithium battery won’t impact cover. The broker might be right - or just not had any related claims yet and so not checked the detail.
 
The link to seller in OP shows him selling several different sets of batteries. Maybe he's in the business of refurbing solar installs? Ask him how many cycles the batteries have done and if they are tested/guaranteed.
 
PaulRainbow said:
There was a long thread about this recently, OP told LifePO4 had to be professionally installed.
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That is the one that triggered my call to the broker. I read my T’s and C’s, no mention, so made the call. He called the insurers, they shrugged their shoulders. I daresay if the work wasn’t done properly there might be an unpleasant scene. But, as my daughter in law is a qualified marine electrician with nearly 10 years experience, I doubt that scenario will occur.
 
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