Using the description 'Lithium Ferrous Phosphate' avoids the confusion, especially in speech rather than writing.Please do some research, Lithium-ion batteries DO catch fire.
Lithium iron phosphate (LifePO4) batteries DO NOT.
LifePO4 is the chemistry of batteries now commonly used for motorhome use, they will of course given correct circumstances catch fire but do not cause the massive problems that Lithium-ion ones do.
Notice the different spellings Lithium-ion, Lithium iron phosphate.
Sorry but just remember this headline. Couldn't remember all the details. Just said Lithium.But Lithium + what? dear Ray
How long have you been talking about swapping Hank?They sound pretty good if for no other reason than the huge reduction in weight. What concerns me a little bit thinking ahead from Clives article there appears to be some restrictions as to what battery types you can use depending on the van make you have. He discusses the difference between Swift and Hymer for example.
I replaced our old 125 ah maintenance free battery with a 120ah AGM earlier this year. Coupled with a single 100w panel and the very clever MPPT controller it's been absolutely amazing all summer. It doesn't sound much when you consider what some people have but until September at least it's been like we were on hookup. Never dropped below 12.5 or 12.6. the van is often stationary for weeks at a time also.
I'm getting a bit cautious now with usage especially up in the Scottish isles but it's getting to the time I would look for EHU anyways
I would consider these for our new van though if we get it. Got to be the way forward I just wonder if there will be hurdles to jump depending on your van choice.
About a decade. It's not my fault there are no vans out there that are as good as the Kontiki 640. 😎How long have you been talking about swapping Hank?
Oh yea you cannot find one with a rear lounge, a garage and a jacuzzi - in mahogany with a pink bathroom - right? 😀
Presumably you dont wire the solar directly to the battery though. They still need an mppt controller?Barry, with reference to your new van, the limitations are only relevant if you want to be able to utilise a Lifepo4 without making any other changes.
You will possibly need to change the 230volt charger and wire the solar direct to the new battery, other than that you can enjoy the increased available power and weight saving (both of the battery and your wallet)
A lot will depend on the control system of your chosen van, many modern vans have facility to add solar charge through the main control unit (Schaudt EBL etc.) but yes it will still need to go through a decent controller, that system although easy to set up does have limitations (as well as advantages)Presumably you dont wire the solar directly to the battery though. They still need an mppt controller?
Solar is our main charging method. Hardly ever go on hookup and when we do it's unlikely we would be spending many nights off grid. Generally the back end, early winter.
A lot will depend on where your battery/ies are stored but yes they cannot be charged if the battery itself is below freezing, if you are likely to be in that situation then it will be best to choose one with heater pad built into the Battery Management System that uses the batteries own power to raise the cell temperature to a level acceptable for charging before it allows charging to start.Can I ask you about sub zero charging John? The implication from what I've read is that attempting to charge when the battery is at or below 0 degs will result in cell damage. Given that in winter quite often I would start up the van in the morning below 0. Would I need to disable charging? Also Solar?
I see for approx 150-200 extra you can get a built in battery management system that has a heater that overcomes that. Money well spent?
Alan the battery you link to is very cheap! at that price it cannot be made from premium components, whether or not that is a problem is a decision only you can make.I'm looking at this.
My Schaudt charger has an Li option.
Batería Litio 12 Voltios 100 Amperios Kaise KBLI121000. Batería de litio 12.8 Voltios 100 Amperios LiFePO4 Kaise KBLI121000 Características: Ciclo dwww.reguerobaterias.es
John, if you see this have you any comment to offer please?
Dick, the one you link to is actually 200Ah, I'd not really looked at Sterling and their prices do look good and as you say they do have a good name.Unfortunately my batteries are in a ventilated slide out locker under the van so the non charging and possible damage in low temps is a bit of a worry as I would say that our leisurely and meandering drive to the med (especially via the Alps) and even in this country can mean many if not the majority of mornings are below zero.
After research I would like the 220AH one in this range. Sterling has a good name and this range has a built in battery management system that incorporates a heater and would compensate for any shortcomings my charging system has.
Pricey i know but if I can dress it up as a present to the wife. Ie TV watching unlimited I might get away with it and never ever need another EHU ever again especially with the brilliant B2B.
Heated Lithium Iron Phosphate Batteries 12V Leisure Battery (5 Year Warranty) AVAILABLE NOW Instructions and spec sheet Part No Nominal Voltage Charge Current Discharge current Nominal Capacity Actual Capacity LB12100 12V 100A 100A 100Ah 100Ah LB12200 12V 200A 200A 200Ah 200Ah All LB series...sterling-power.com
Yes it does John, I fitted one 5 yrs ago, huge difference it made. It’s the one that "fools" the alternator. Not sure of the charger without going up the field to the van but it would have been the top of the Hymer range one (in 2003/4). From memory it has a setting for gel/AGM as well. I’ve got 3X110 AH cheap lead acid batteries in the locker that are coming to the end of their life.Dick, the one you link to is actually 200Ah, I'd not really looked at Sterling and their prices do look good and as you say they do have a good name.
Does your van already have a B2B installed?
Most gel settings will be OK for lithium but not ideal.Yes it does John, I fitted one 5 yrs ago, huge difference it made. It’s the one that "fools" the alternator. Not sure of the charger without going up the field to the van but it would have been the top of the Hymer range one (in 2003/4). From memory it has a setting for gel/AGM as well. I’ve got 3X110 AH cheap lead acid batteries in the locker that are coming to the end of their life.
ps sorry it was 200AH