Losing weight

[Exwindsurfer]

Well I’ve changed my batteries over and I’ve gone for 105kg of lead asid to 28kg of lithium’s

 

[Exwindsurfer]

Are they as light as your bank account is now

Yes your right the bank account is much lighter lololol.

 

[saxonborg]

All you need to do now is wire your van to your house and you will be able to run off grid.??

 

[Exwindsurfer]

All you need to do now is wire your van to your house and you will be able to run off grid.??

I am well please Eric the way it’s turn out .

 

[The laird]

Do they have any venting on them jeff ,just curious

 

[Exwindsurfer]

Do they have any venting on them jeff ,just curious

There no need for venting Gordon so Phil says .

 

[jagmanx]

WeightWatchers are cheaper !

 

[Exwindsurfer]

WeightWatchers are cheaper !

Very true lolol

 

[The laird]

There no need for venting Gordon so Phil says .

Yeah wasn’t too sure as the type of battery that they are ,curious that was all ,skinny wee git you are losing all this weight aghhhhhh?

 

[Exwindsurfer]

Yeah wasn’t too sure as the type of battery that they are ,curious that was all ,skinny wee git you are losing all this weight aghhhhhh?

I thought they where lipo but Phil informed me they are lithium

 

[Admin]

I thought they where lipo but Phil informed me they are lithium

Lipo are lithium but these are Lithium Iron Phosphate (Lifepo4).

 

[wildebus]

looking good there

 

[Wooie1958]

Are they both the same size / model batteries ? The labels on the + side are different

 

[Exwindsurfer]

Yes both the same size.

 

[Wooie1958]

OK, that makes me even more curious as to why the labels are printed differently

 

[electricscott]

With 2 batteries haven't lost capacity, rough 100AH? I know they charge quickly so you maybe able to manage without the extra capacity.

 

[Admin]

With 2 batteries haven't lost capacity, rough 100AH? I know they charge quickly so you maybe able to manage without the extra capacity.

You can only use 50% of a lead acid battery's capacity. (3 x 125) / 50% = 187.5 Ah. These lithium batteries can deliver the full 100% on every cycle and still achieve over 2000 charge cycles above 80% capacity. So 200 Ah total.

The real magic if is you use an inverter as LifePo4 batteries do not suffer stamina issues under higher loads. Also as their charging efficiency is 20% - 28% better than lead acid, you actually store 20% more energy from solar.

 

[electricscott]

Whoa these batteries are expensive, the cheapest I have found is over £600 each! I replaced my motor cycle battery with a 290A starting capacity lipo which cost close to £100 making it just under twice as expensive to an equivalent lead acid.
Marine batteries are around £140 ISH making the lipos 4 to 5 times as expensive.

 

[wildebus]

You can only use 50% of a lead acid battery's capacity. (3 x 175) / 50% = 187.5 Ah. These lithium batteries can deliver the full 100% on every cycle and still achieve over 2000 charge cycles above 80% capacity. So 200 Ah total.

The real magic if is you use an inverter as LifePo4 batteries do not suffer stamina issues under higher loads. Also as their charging efficiency is 20% - 28% better than lead acid, you actually store 20% more energy from solar.

Phil,
Do you know how in reality these compare with the Victron LiFePO4 batteries?
I am wondering as the Spec for the Relion Batteries are better in EVERY respect than the Victrons despite being around 30% cheaper and I am curious how much is real and if there is any marketing spin on it.
For example - the Victrons are spec'ed to discharge to 80% DOD (Relion 100%); Discharge current continuous 50A (Relion 100A); Min temp for Recharge 4C (Relion -16C or something).
Given they are the same basic battery technology, how is there that much variation in the above numbers between the two? Are Victron being overly conservative?

(PS.. "(3 x 175) / 50% = 187.5 Ah" ? 261Ah maybe (think maybe 3 x 125Ah was meant )

 

[Wooie1958]

Must be only me can see the difference.

It was a genuine question, i wasn`t trying to be funny or anything.