Lithium batteries.. is this one any good (1 Viewer)

[Just smiffy]

What’s your thoughts…

Seems a good price with Bluetooth

Renogy 100Ah Lithium Battery 12V w/ Built-in Bluetooth Smart LiFePO4 2000+ cycle | eBay

Renogy 30W 50W 80W 100W 175W 200W Mono Solar Panel 12V Off Grid Power RV. Renogy Solar Power Station 200W Portable 222Wh Generator Phoenix Leightweight. - Renogy 12V 100Ah Bluetooth Smart LiFePO4 Battery -.

www.ebay.co.uk

 

[enark]

There are a couple on the classifieds……only £1250 (that’s twelve hundred and fifty quid) each……..

really, these may be good enough for nuclear subs, but £50 for a lead acid which will last for ages is fine by me.

 

[Itsmcb]

Depends on what you want it to power. It has a max discharge of 100amps so no good for an inverter over about 800 watts.

 

[Itsmcb]

There are a couple on the classifieds……only £1250 (that’s twelve hundred and fifty quid) each……..

really, these may be good enough for nuclear subs, but £50 for a lead acid which will last for ages is fine by me.

Yes I saw those, a very good brand but wow, really expensive

 

[canopus]

SuperB LifePo4 Lithium Batteries for sale

I have 2 x 90ah SuperB Epsilon LifePo4 batteries for sale, these are fitted to my Rapido i1090 Distinction A Class motorhome which was registered 1st March 2022. They are obviously as brand new condition with built in BMS and regarded as being...

www.motorhomefun.co.uk

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[Just smiffy]

Depends on what you want it to power. It has a max discharge of 100amps so no good for an inverter over about 800 watts.

I’m looking at possibly two lithium batteries or one larger one (200amps+) running a pvc and an inverter of around 800-1000w for to charge electric bike batteries and whatever on occasion….

 

[Lenny HB]

Have a look at Fogstar, 15% discount for Funsters.

Lithium Leisure Battery | Fogstar UK

‘Fogstar Drift’ Lithium Leisure Battery | All models include Grade A EVE Prismatic LiFePO4 cells, High Discharge JBD BMS, Bluetooth, Heating | Lowest Prices in the UK. 10 Year Warranty.

www.fogstar.co.uk

 

[Just smiffy]

As with lead batteries having two or three in series’s or parallel is the better, is it the same with lithium..?

ie: two 100amps or one 200amps..?

 

[Swifter]

As with lead batteries having two or three in series’s or parallel is the better, is it the same with lithium..?

ie: two 100amps or one 200amps..?

I’ve got 2x 100ah lithium in parallel

 

[Lenny HB]

Generally OK in parallel but it can depend on the BMS.

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[monzer]

A couple months wait for Fogstar if you do go for them. Their 105Ah seem pretty good value at £430.

 

[BILL 875]

I have bought a 300a fogstar £ 850 a bargain I think.

 

[suavecarve]

I have bought a 300a fogstar £ 850 a bargain I think.

Beats my 200 ah for 650 (amazon) about 4 months ago

 

[PaulC70]

I have bought a 300a fogstar £ 850 a bargain I think.

That does seem good compared to a lot of other options.

I've been thinking about upgrading for some time I have to admit, thinking of upgrading my current one solar panel / one SLA battery to either a lithium battery or a lithium plus additional panel.
Have to admit other than at this time of year I manage but am careful about energy use in the motorhome as there's been a couple of times where the panels warned me about the battery getting low.

Is it really worth getting a single 300ah lithium though over a standard 105ah lithium if they have a deeper discharge than what I have?

 

[suavecarve]

Is it really worth getting a single 300ah lithium though over a standard 105ah lithium if they have a deeper discharge than what I have?

Similar conundrum to many of us over the past couple of years.
My 200 ah of gel were just about sufficient for our needs. 2 Ebikes getting charged plus general use, but the sun had to shine and I have 370 watts of solar. (We use MH in summer in France mostly)
Rather than replace the 200 ah of gel with equivalent 100 of lithium i went for the 200 ah of lithium thinking (and it has been so far) that will be enough and paid the 650 for that.
If the 300 ah were available for 850 at the same time I would have gone for that as the size of the 200 ah of lithium means adding another battery is not possible within the same location.

Good luck with the decision making

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[PaulC70]

If the 300 ah were available for 850 at the same time I would have gone for that as the size of the 200 ah of lithium means adding another battery is not possible within the same location.

Yes, this is also my worry about positioning, i see that the lithium batteries are taller than standard, i need to go measure where the current sla one is and see if it would even fit as a direct replacement.

 

[suavecarve]

Yes, this is also my worry about positioning, i see that the lithium batteries are taller than standard, i need to go measure where the current sla one is and see if it would even fit as a direct replacement.

Even though I measured it knowing it would go in, I didnt overly take too much notice of its size and had to move a couple of things about.
When it physically turned up and put it in the thought "That is a bit closer than I anticipated" came to mind immediately.

It goes underneath a single seat (in our van) and with the inverter and fuse board it needed placing and no chance of another

 

[cyberyacht]

Having two slightly smaller capacity batteries in parallel does halve the discharge rate when placing a heavy load on. Must be kinder to the batteries whatever their claimed max discharge rate.

 

[PaulC70]

Having two slightly smaller capacity batteries in parallel does halve the discharge rate when placing a heavy load on. Must be kinder to the batteries whatever their claimed max discharge rate.

Possibly quite right but I want a simple solution really, ie swap out the sla for a Lithium just to make life easier.

Here's the current setup

And after measuring it does appear there would be enough room indeed for the 300ah lipo4 from fogstar.

 

[PaulC70]

3 other issues I need to investigate now though.

1. I have a vanbitz B2B controller fitted and dont know if this will still be ok?
2. Does my motorhome have a "smart" alternator and will this be an issue if it does or doesn't?
3. My current solar controller doesn't seem to have a setting for lithium

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[funflair]

Generally OK in parallel but it can depend on the BMS.

Super-B say up to 4 in parallel.

 

[Al n Val]

Yes I saw those, a very good brand but wow, really expensive

you get what you pay for, or thats my motto

 

[Just smiffy]

Lithium is certainly coming down in price.

 

[Littlewheels]

Lithium is certainly coming down in price.

This is true and is a bullet point with both buyers and sellers,however,there is a vast amount of difference with the internal lithium pods and it’s not really made clear how these perform as overall statistics are often similar.
l have used the Sterling brand in the past when lots of the brands you see now were not produced.
My current MH is fitted with a Steitz branded unit and the performance is amazing far outreaching previous set ups,however,the cost is mind blowing.
You only get what you pay for.

 

[Al n Val]

You only get what you pay for.

This is very true

But I want to know what the difference is between a Roamer 460ah LifePo4 battery at £1700 and a SuperB 340ah LifePo4 battery at £4200

The cell quality and BMS surely is the only possible difference but £2500 more for 120ah less doesn’t add up

Or does it, will one make me and the other

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[Itsmcb]

This is very true

But I want to know what the difference is between a Roamer 460ah LifePo4 battery at £1700 and a SuperB 340ah LifePo4 battery at £4200

The cell quality and BMS surely is the only possible difference but £2500 more for 120ah less doesn’t add up

Or does it, will one make me and the other

Or a fogstar 460amp at £1350 with 10 year warranty, Bluetooth, built-in heater and 200amp max charge and discharge rates. (Basically the same as roamer).

 

[enark]

This is very true

But I want to know what the difference is between a Roamer 460ah LifePo4 battery at £1700 and a SuperB 340ah LifePo4 battery at £4200

The cell quality and BMS surely is the only possible difference but £2500 more for 120ah less doesn’t add up

Or does it, will one make me and the other

Or why not have a generator fitted, cost under £4k and give you 3kw of AC power….?

 

[Al n Val]

Or why not have a generator fitted, cost under £4k and give you 3kw of AC power….?

upsetting the neighbours springs to mind

 

[enark]

upsetting the neighbours springs to mind

Not really, a good one is almost silent. Had a beauty fitted on a horse box, push button, diesel from fuel tank, almost silent and vibration free ( had to be, so as to not scare the horses…) and then full mains at the push of a button.

such as. https://hyundaipowerequipment.co.uk...MIg72ds4jZ-wIVA2HmCh2aRgO0EAQYASABEgJeH_D_BwE

 

[peterc10]

There is no such thing as a quiet generator, especially in peaceful surroundings.