'Eco-Worthy' lithium batteries

Sonar said:
The latest. On the eco worthy batteries seems Ian has managed to get a lot of orders and now eco worthy are sorting out a deal for him
The bulk of the batteries being 280 Amp .

Must collect from the warehouse is one of the conditions .
Should know today or tomorrow on a final price ..for each one .
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I did mean to update this I got two x 280 amp batteries for the price of £ 620. Inc vat .Brand new.
My mate managed to order a little over 200 of them. Power buying I guess .. no pun intended

However that included collection with his friends lorry. So collection and fuel were in the price we all paid .
Seems most have gone to people that own narrow boats in some cases as many as 4 each for a few boats and very few for motorhomes .
Two caravans …

Then again there will be some that will be sold on at the full price at £550 each buy some of the bulk buyers. Guess there all in it to make money.

However there not heated and for what the whole lithium system has cost me I am not complaining ..
I should have bought a few more myself however there all now gone …

Ian has no plans to get any more .

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I see a lot of folk getting Lithium for their boats, but very often they are adding Lithium to their existing Lead setups and not switching (there are very good reasons not to go full Lithium on a boat).
Tend to be narrowboats where there is no point removing the lead batteries - especially if they still work - as if you did, you would only have to go and buy some bricks to put in their place to provide the ballast, but also seeing boats with Lead and Lithium combos - got Adriatic cruisers and Greek yachts with that setup (one added 4 x Fogstar Drift 480ah batteries to join the existing Lead Bank).
 
I understand quite a few have gone to narrow boats. Some as having 4 x. 280 amp batteries at a time.

Got a feeling some have gone to narrowboat manufacturing. Companies as well ..
 
I see Fogstar are reacting (presumably) to Eco Worthy and are bringing out an Eco battery that has none of the extras but at a cheaper price. £499.99 for a 305Ah battery. Should be ready for shipping in August
 
Lithiums have very much become a commodity product. Just buy a bunch of cells and a cheap BMS and all you need is a pre-made case to stick them in and voilá ... got a Lithium Battery.
How well is it screwed together though?
 
My DIY LFP pack uses 304ah cells. Buying eight cells and BMS direct from China costs about £800. As four cells in series are required for a 12v system this provides 608ah (~£1.35/ah).
Weight - very light, 44kg (~ 13ah/kg)
Space - These eight cells take up the same space as two 12v 90ah batteries so very compact.
Usable capacity without rapid degradation - ~ 90-95% (~ £1.50/ah)
Charge/discharge efficiency ~ 95%Capability to cope with high loads - very good
Battery life - 15yrs+ assuming good BMS protection. Unless heavily used cycle life limits unlikely to be reached.
 
Chasn said:
My DIY LFP pack uses 304ah cells. Buying eight cells and BMS direct from China costs about £800. As four cells in series are required for a 12v system this provides 608ah (~£1.35/ah).
Weight - very light, 44kg (~ 13ah/kg)
Space - These eight cells take up the same space as two 12v 90ah batteries so very compact.
Usable capacity without rapid degradation - ~ 90-95% (~ £1.50/ah)
Charge/discharge efficiency ~ 95%Capability to cope with high loads - very good
Battery life - 15yrs+ assuming good BMS protection. Unless heavily used cycle life limits unlikely to be reached.
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That's pretty cheap! I've considered doing similar but couldn't find the cells at the right price and would be wary of parting with £800 direct to China so I take my hat off to you!
Out of interest what's the spec on your chosen BMS?
 
wildebus said:
Lithiums have very much become a commodity product. Just buy a bunch of cells and a cheap BMS and all you need is a pre-made case to stick them in and voilá ... got a Lithium Battery.
How well is it screwed together though?
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in this instance presumably as well put together as all their more expensive battery. Its got the Fogstar name on it and they have commissioned them so...
 

Lithium battery suppliers

i am poor on knowledge it’s all electrickery to me but as i understand it the lithium charges fast and is used in the first instance but also constantly trickle charges the lead element , i’m not a big power user very rarely turn on tv but run my fridge freezer for several hours a day off...
motorhomer.com motorhomer.com

I just didn't have the room to do a hybrid system in Murky, so now it's 100% Lithium (home assemble) 404Ah. It ran the fridge last night with no problems. Setting up the charge voltage and BMS settings have been fussier than with lead. If all is well in a couple of weeks I'll have a couple of 6 volt trojan T105's looking for a new home.

Mark
 
merl said:
That's pretty cheap! I've considered doing similar but couldn't find the cells at the right price and would be wary of parting with £800 direct to China so I take my hat off to you!
Out of interest what's the spec on your chosen BMS?
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This was my 4th purchase from China direct. Previously spending between £3.5k and £4k on 32 cells each time for three 30kwh off-grid packs. No issues but plan ahead as delivery typically takes at least 8 weeks. I test each cell for capacity. Using a well respected retailer usually provides better actual Ah figures. This order resulted in all cells exceeding spec (305.4 - 309.2 Ah).
The BMS is a JK 200A (4S-8S) with 2A balancing. I used the 16S version for all my 48v off-grid systems. I think that they are the best. View 'Andy's Off-grid Garage' YouTube channel for a masterclass.
 
Chasn said:
This was my 4th purchase from China direct. Previously spending between £3.5k and £4k on 32 cells each time for three 30kwh off-grid packs. No issues but plan ahead as delivery typically takes at least 8 weeks. I test each cell for capacity. Using a well respected retailer usually provides better actual Ah figures. This order resulted in all cells exceeding spec (305.4 - 309.2 Ah).
The BMS is a JK 200A (4S-8S) with 2A balancing. I used the 16S version for all my 48v off-grid systems. I think that they are the best. View 'Andy's Off-grid Garage' YouTube channel for a masterclass.
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Yeh, I've watched quite a few of his videos, I like his approach and the way he tells it like it is, if he cut out the pointless waffle he'd be perfect but he's far from alone in pointless waffling, in fact many are worse 😩
With that BMS capable of both do you use 24v in the van or did you stick with 12?
 
merl said:
Yeh, I've watched quite a few of his videos, I like his approach and the way he tells it like it is, if he cut out the pointless waffle he'd be perfect but he's far from alone in pointless waffling, in fact many are worse 😩
With that BMS capable of both do you use 24v in the van or did you stick with 12?
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I find it very hard to watch Andy. He waffles on and verges off-track even more than I would - and I wouldn't watch myself on YouTube :D
 
Andy has done a few on Sodium battery, not sure if anyone else has watched them or not. Conclusion was intersting for anyone thinking they may be of use in a van lol
 
wildebus said:
I see a lot of folk getting Lithium for their boats, but very often they are adding Lithium to their existing Lead setups and not switching (there are very good reasons not to go full Lithium on a boat).
Tend to be narrowboats where there is no point removing the lead batteries - especially if they still work - as if you did, you would only have to go and buy some bricks to put in their place to provide the ballast, but also seeing boats with Lead and Lithium combos - got Adriatic cruisers and Greek yachts with that setup (one added 4 x Fogstar Drift 480ah batteries to join the existing Lead Bank).
Click to expand...
New member here and sort have come here (late) from a mix if an interest in off grid, Campervans (I've had a couple years ago and possibly helping a mate with the electrics on his) and recently helping an elderly guy sort the electrics on his 70' Narrowboat, including replacing the batteries (4 x 12V / 120AH FLA in this case). Repacing the partially connected 100A shunt with a Victon 250A Smart Shunt with everything going though it helped us prove the batteries were shot. It might also help him preserve the new batteries as he can now see the charging current via the app and ensure good absorption stage / tail current etc. Going lithium would save some diesel, running a 50hp diesel engine just a few amps of tail ... ;-(

We did read up on the idea of a hybrid setup but there was some mention of Lithium not being officially covered in the Boat Safety Scheme so the potential of insurance questions, that and potentially complicating matters, especially given it is his home so we just replaced like with like.

There was also talk of using a longer cable between the alternator and Lithium as a crude form of current reduction due to overheating alternators?

It also turned out his 240V 3kW TravelPower had never been connected properly in the 10 years he's owned the boat (now correctly routed into his 12/3000/120 Victron Pheonix Combi and the input mechanically switched between the TravelPower unit and Shorepower).

I am assembling some bits to put a small solar solution together and already have a couple of 120W panels, an Epever solar controller, a Victron Smart BT shunt and a little 60Ah AMG semi traction) battery.

I also have a Bluetti EB3A and AC180 for portable power use when car camping and general mobile stuff.
 
I've recently bought two 12v 100AH lifpos from Amazon for £139 each. The original price is £169 but they have a £30 voucher for each order. So if you want two at £139 each, you have to place one order at £169, get the £30 off so you pay £139, then the next day place another order at £169 and apply the £30 discount again. You can only have £30 off per order so you need to order twice, presumably on different days. £139 is now so close to what you would pay for a regular leisure battery I reckoned it would be worth changing to Lifpo (I can't be bothered with all the capital letters and numbers but you know what I mean)
 
Exwindsurfer said:
I've had unheated lithium batteries for over 5 years now and never had a prob within and yes we do use the van in the winter.The batteries are set so they won't take a charge below -2 but we can still use them.
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I was trying to remember how long we have had our Relions, so it was 5 years and there still going strong, mine are in a polystyrene lined box in the living area, so no real probs with the cold.👍
 
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