I think you'll find that guarantees boil down to faults in manufacture only, and not how long they might last for.
How would you prove that the batteries have not been mistreated?
Lithium experts out there...
- Thread starter Peavy
- Start date
How would you prove that the batteries have not been mistreated?
OP
OP
I bought my Lithium 160ah from Roamer...they shipped to me here in Murcia...the guarantee is 10 years....
The shipping was 100€ which covered transport and taxes....
The aftersales service is first class as was the advice received pre-installation....
160ah suits us....if I had space I would have bought a bigger single battery....
The shipping was 100€ which covered transport and taxes....
The aftersales service is first class as was the advice received pre-installation....
160ah suits us....if I had space I would have bought a bigger single battery....
OP
OP
Now that's also interesting, Martin...
I'm finding out the Lithium sold here is not high quality in my eyes. Everything looks chinese cheap with rainbow colours
Not very trusty.
In the other hand, Fogstar or Roamer looking from a different league.
I'm considering It...
Thanks.
Northernraider
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I have a single fogstar 105ah lithium battery and I love it. I'm fulltime and it's literally changed my life with power.
Would highly recommend.
Would highly recommend.
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MichaelT
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I think you’ll find they are all Chinese insideNow that's also interesting, Martin...
I'm finding out the Lithium sold here is not high quality in my eyes. Everything looks chinese cheap with rainbow colours
Not very trusty.
In the other hand, Fogstar or Roamer looking from a different league.
I'm considering It...
Thanks.
Yes they are all likely to have some Chinese components, what matters is how they are designed and constructed. Some are built to last and others are thrown together cheaply. Some of the strip down videos show how not to do it. Proper construction costs more.I think you’ll find they are all Chinese inside
scotjimland
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I'm a Lithium expert ..
Northernraider
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I think you’ll find they are all Chinese inside
The same could be said for a morello and a swift . Or a mercedes and a Dacia
Many of the parts are built elsewhere
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Not if you use it as your only vehicle. Early morning winter starts are often below freezing.
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MichaelT
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unlikely to use a leisure battery as your starter battery, thats likely to be lead acid as well.
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I mean the LB...soon as you start the engine the B2B kicks in and starts to charge it.
I know because at the moment I have to remove a fuse so the B2B doesn't get the D+ engine running signal...
Tombola
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Is there a problem with it starting to charge... If the battery is inside what temps does it get to. Mine is inside but can charge at 0
MichaelT
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But the BMS should stop it charging if the temperature is below the charge threshold?
Two on Tour
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At 0 degrees C you should not charge a LifePo4 battery above a charge rate of 0.1c, so if you have a 100Ah battery the the charge rate needs to be no higher than 10 amps and 30 amps for a 300 Ah battery, so anybody with a 100Ah battery and a 30 amp B2B will be well over the recommended charge rate when the engine starts with the B2B triggered with the D+ at a battery temperature at 0 degrees C.
"c" is the charge and discharge rate, an empty battery charged at 1c will take an hour theoretically to charge to full.
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Last edited:
Two on Tour
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I don't use the D+ to trigger my 60amp B2B, I use a switched ignition feed and switch my B2B manually as and when I feel it's required.
Last edited:
Northernraider
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You could fit an inline switch
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No BMS on the battery. Should ve a different battery fitted IMO.
True. I think I'll fit a different battery that has a heater and has the benefit of being a higher capacity and Bluetooth to boot!
Tombola
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your only vehicle meaning you live in it ? and it can get to 0 degrees inside(reminds me of an old bedsit I used to bloomin live in, ice on the inside of the windows in a morning LOL)
probably look at a diesel heater if you are getting to those temps, in which case your battery will always be at charge temps
probably look at a diesel heater if you are getting to those temps, in which case your battery will always be at charge temps
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No don't live in it but don't have a car so if we want to go out early/late it's an issue.
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Northernraider
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I'd change it for a fogstar .. mine never gets down to 0° the built in heater keeps it at a decent temperature.
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That's what I'm planning on doing. As the van is still under warranty, I need permission to change the terminal rings from M6 to mate. Just waiting on an email then I'll buy a new Fogstar Drift 105ah.
Tombola
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I see, i understand now, my mistake.
I've a single Roamer 160ah and we are Part-Time..
But we charge eBikes everyday more or less...while we are using our MH...
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We should do the other way around and one of you would be so kind as to bring a battery on the next raid down here
I was also going to offer but I wouldn't be going to the UK until springtime & not returning until end august/september.
If someone will bring it for you it would save on the 110pound Roamer charge as they appear to be the only ones shipping to europe?
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It's your tilting panel in winter that makes all the difference.
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My Votronic B2B came with a temperature sensor you attach to the negative pole of the battery and a LiFePo4 profile which prevents charging if the temperature is too cold. And my LiFePo4's Battery Management System prevents charging anyway if the battery's temperature is too low. So belt and braces I reckon.
OK buddy...I suppose you are right, I tilt when it's necessary to tilt....
Two on Tour
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That's all well and good Peter, but what are you going to do with not being able to charge your battery when your BMS cuts off any charging and your battery is running out of power when you need it?
You can charge a Lifepo4 battery that's below zero degrees C, but it has to be at a charge rate applicable to the temperature that the battery is at any given time it's being charged, but most BMS's play safe and cut off all charging full stop, understandable as BMS's are pretty dumb and can not control the incoming rate of charge on the fly.
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Just make sure that if any warranty work needs doing you can put the original battery back
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