VSR with Lithium, DON'T

[Pudsey Bear]

I just got an email from 12v planet.

Why Can't You Use a Split Charge Relay With a Lithium Battery?

Find out about the latest goings-on and new products as well as help articles and advice. 12 Volt Planet

www.12voltplanet.co.uk

 

[Exwindsurfer]

I've use a lithium split charger for day one and that is over 5 year now and not had a prob with it ?.

 

[Pudsey Bear]

Don't shoot the messenger, I'm crap at lectrics.

 

[Exwindsurfer]

Don't shoot the messenger, I'm crap at lectrics.

That's two of us Kev lolol

 

[nabsim]

A lot of the yanks use alternator charging even adding big second alternators with lifepo4. They fit a device to throttle the initial charging which is probably what your bit of kit does Geoff.

 

[Exwindsurfer]

A lot of the yanks use alternator charging even adding big second alternators with lifepo4. They fit a device to throttle the initial charging which is probably what your bit of kit does Geoff.

I didn't know I'd changed my name Neil lolol I thought it was JEFFREY lololol

 

[nabsim]

I didn't know I'd changed my name Neil lolol I thought it was JEFFREY lololol

Is it, I always thought you were same as my old chap, a Geoffrey lol

Apologies but I will probably get it wrong again in future lol

 

[Exwindsurfer]

Is it, I always thought you were same as my old chap, a Geoffrey lol

Apologies but I will probably get it wrong again in future lol

That's Gee off rey lolol

 

[Pudsey Bear]

Is it, I always thought you were same as my old chap, a Geoffrey lol

Apologies but I will probably get it wrong again in future lol

I have a spreadsheet with all the names on Niel as I'm Terry Bubble.

 

[Pudsey Bear]

That's Gee off rey lolol

I've got Jeff Geoff

 

[wildebus]

Is it, I always thought you were same as my old chap, a Geoffrey lol

Apologies but I will probably get it wrong again in future lol

Nah, he is Jeffery.

But I want to know who on the forum is Bungle and Zippy?

 

[Pudsey Bear]

Bungle is a bit obvious, even starts with a B too

 

[nabsim]

I have a spreadsheet with all the names on Niel as I'm Terry Bubble.

User error lol. I am not Niel I am Neil

 

[nabsim]

Bungle is a bit obvious, even starts with a B too

Hahaha, do you mean Barry Bungle

 

[Pudsey Bear]

User error lol. I am not Niel I am Neil

WELL!! if you had a signature I could cut and paste it kneel

 

[wildebus]

WELL!! if you had a signature I could cut and paste it kneel

reminds me of a joke by Stephen Wright....
Never name your child after a verb. They get confused when they are at school ...
Teacher: "Neil, stand up. Neil, stand up"
Child: "Make your mind up!"

 

[Winks]

I've use a lithium split charger for day one and that is over 5 year now and not had a prob with it ?.View attachment 73727

Same here Jeff but with lead acid. Never missed a beat even through the depths of winter the starter battery has been up. Best £40 I ever spent on the van. I don't have it set up to use the hab battery for emergency starting mind.

Cheers

H

 

[wildebus]

Same here Jeff but with lead acid. Never missed a beat even through the depths of winter the starter battery has been up. Best £40 I ever spent on the van. I don't have it set up to use the hab battery for emergency starting mind.

Cheers

H

Thing to be aware of is that if you had a "normal" VSR or the Cyrix-Ct (rather than Jeff's Cyrix-Li), it would be no use at all with Lithium, but actually for a very different reason than given by 12V Planet!
The "off" threshold voltage is lower than a Lithium Batteries range until it is nearly fully discharged, so the VSR will turn ON fine when you start the engine but then will just stay on all the time.
The Cyrix-Li has a higher set of thresholds suitable for the operating range of Lithium Batteries (plus a different use for the terminal used as "start assist" on the Cyrix-Ct)

 

[Exwindsurfer]

Thing to be aware of is that if you had a "normal" VSR or the Cyrix-Ct (rather than Jeff's Cyrix-Li), it would be no use at all with Lithium, but actually for a very different reason than given by 12V Planet!
The "off" threshold voltage is lower than a Lithium Batteries range until it is nearly fully discharged, so the VSR will turn ON fine when you start the engine but then will just stay on all the time.
The Cyrix-Li has a higher set of thresholds suitable for the operating range of Lithium Batteries (plus a different use for the terminal used as "start assist" on the Cyrix-Ct)

I did have the Ct at first when I had led acid batteries but Phil told me I need the Li for the Lithium.

 

[Admin]

I could have fitted anything in my van and I chose a Victron Cyrix Li (lithium VSR) rather than a B2B, but then I don't sell expensive B2B units.
The decision should be made based on the alternator.