Lithium battery

Wes

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I am looking for recommendations for a drop in lithium battery 100 amp hour or nearest to, can anyone help?
 
there are very few ’drop in ‘ battery installs in spite of the sales blurb do your research carefully there are several pitfalls along this route charging cold inverter loads etc
 
Couple of other Key things you need to be aware of apart from if your chargers are suitable (which is important of course) ...
  • Unless the Battery has a built-in State of Charge (SOC) monitor, you really need to fit one (you may have one already of course?). You cannot rely on using a voltage to get even a rough idea of the battery level until it is too late.
  • If you are - or intend to be - an Inverter user, be aware of the absolute current limits on a Lithium Battery. this is down to the BMS that is fitted, but it is rarely above 100A and often lower. A 1000W Inverter, plus the various other incidental loads would draw 100+ Amps from a battery.
 
I have a Relion LiFePO4. I haven’t bothered changing the mains charger, the gel profile is close enough and when on ehu I don’t need to optimise the charging. I have fitted a B2B because I do want to optimise the charging before pitching up at an off grid location. The B2B looks after the battery and protects the vehicle alternator too.
 
Wes said:
I am looking for recommendations for a drop in lithium battery 100 amp hour or nearest to, can anyone help?
Click to expand...

Just my thoughts, (although I don't think I'm always allowed air my thoughts) so this is no recommendation or advice.

I bought a pair of Ecotree 110Ah batteries, they seem OK and good company to deal with. The cells are cylindrical so physically strong unlike some cells.
Darren from Urban Motorhome
and Camper Vibe
fitted them. Also you can talk to https://omcmotorhomes.co.uk/ direct.
 
xsilvergs said:
Just my thoughts, (although I don't think I'm always allowed air my thoughts) so this is no recommendation or advice.

I bought a pair of Ecotree 110Ah batteries, they seem OK and good company to deal with. The cells are cylindrical so physically strong unlike some cells.
Darren from Urban Motorhome
and Camper Vibe
fitted them. Also you can talk to https://omcmotorhomes.co.uk/ direct.
Click to expand...
In my opinion post whatever you like, you make more sense than most. At least you don't do those stupid post saying you can't help. Some people need their fingers tied up! But I guess they would use their nose or tongue. Peace and love to all. :)
 
Wes said:
I am looking for recommendations for a drop in lithium battery 100 amp hour or nearest to, can anyone help?
Click to expand...
Got one a month ago from KS Energy,roughly £600 which has an app for your phone so you can check the charge etc.
charges fast,light,holds the charge,very pleased.
Replace my two 110 gel batteries .
 
Donsider said:
Got one a month ago from KS Energy,roughly £600 which has an app for your phone so you can check the charge etc.
charges fast,light,holds the charge,very pleased.
Replace my two 110 gel batteries .
Click to expand...
Thanks for info, did you have to modify or change your mains charger ?
 
Wes, It looks like your not going to get a response to the two requests yo made for "did you have to modify or change your mains charger" ?
So here is a bump, I too would like to know the answer
 
regnarts said:
Wes, It looks like your not going to get a response to the two requests yo made for "did you have to modify or change your mains charger" ?
So here is a bump, I too would like to know the answer
Click to expand...
The thing is .... what one person had to do to accomodate a battery with different charging requirements is unlikely to be exactly the same as what another person may need to do.
So if you want to know what someone else had to do out of curiosity, fair enough. But if you are asking in order to just do the same, that may not be right for you.
The key things are what (in detail) charging systems do you have in place - When on EHU, when driving and if you have Solar? That determines if in each case you can leave as is; you can keep but reconfigure; or you need to replace.
 
On my Votronic charger it had a profile that charges to 14.1 with a short absorb which is perfect for lithium and works fine, generally though I like to be around to turn it off as the absorb is still a few hours. I removed the temperature sensor leads.
The person indicating the gel profile works probably takes into account the voltage which is low, probably 14.2-14.4 but gel has super long absorb times so you'd want to turn it off manually.
I have another charger from alpha batteries, a cheapish one and that doesn't work very well, when it gets to absorb it cuts the power in half but wants to push too much voltage in and hits the bms disconnect. I can't alter this in any way, so it would still work if you're around to keep an eye on it, but personally I wouldn't use it.
 
We are booked in to have 2 off 100 amp lithium batteries and a battery computer fitted at Roadpro in March, replacing our 4 lead acids in our Vantage Neo. That has a 12 volt compressor fridge, which takes 4 amps when running, but has a very low duty cycle. Roadpro expects that I should not need to change the charger, the Sterling battery-battery charger of the solar panel controller. We booked in October, and the earliest we could get was late Feb.

When abroad (several months each year) we spend most of the time off grid. All fine until 2 of the batteries died in Italy in October. Still fine, but we had to watch the amps and voltages rather more carefully
 
If indeed you do not need to change anything on any of the charging sides then it is a simple job to remove the old battery’s and fit the lithiums. I would recommend you have a decent battery monitor as it’s almost impossible to know the state of lithium without it.
I too have a compressor fridge that is rated at 4amps with a usage of 48amps a day usually. At this time of year adequate charging is really important, especially if you are in the U.K. swapping to Lifepo4 two years ago means I haven’t killed the battery’s again yet but i do make them work :)
 
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