20 to 80% recommended charge?

[JJeep]

The general recommendation for regular charge is in the range 20 to 80%.

I've read that it does not apply to LFP battery cars, that there is no problem charging 0 or near 0 to 100% with these batteries, but I can't find any reliable sources for this? Does MG have a recommendation for LFP cars charge such as the MG 4 Std?

Thanks.

I mean regularly

 

[Jomarkh]

Hi, there a few threads on this, just put a few words in the search bar.
LPF are fine to 100% daily

 

[fnegroni]

The general recommendation for regular charge is in the range 20 to 80%.

I've read that it does not apply to LFP battery cars, that there is no problem charging 0 or near 0 to 100% with these batteries, but I can't find any reliable sources for this? Does MG have a recommendation for LFP cars charge such as the MG 4 Std?

Thanks.

Save yourself a lot of reading and do this: charge as little as you need and as often as you need, but at least once a week charge to 100% and balance the battery on a slow charger, and once every 3 to 6 months charge from below 10% (as low as you like) to 100% including balancing.

That’s what is written in the manual, and the conclusion you will come to after reading countless research papers and watching countless videos.

I treat my LFP as a petrol tank. No difference. It’s going to outlast the car.

 

[Rolfe]

What he said.

If anyone can find the thread I should merge this into, could you post a link? I'm on my phone and the search function is difficult.

My LFP battery is currently charging on a Tesla supercharger to as close to 100% as I can get it.

 

[Kithmo]

I only have 5 hours off peak (9p/kWh) so I just charge to whatever it takes in 5 hours, scheduled on the Pod Point.
I can get just under 50% charge added in 5 hours, accounting for losses, so if I start at 55% SOC I can get it to 100% plus balancing and a 35% start will take me to 80%ish in 5 hours.
More often than not, I go from just under 50% SOC to 80% using the Pod point schedule and setting the battery saver mode in the car to 80% SOC.

 

[fnegroni]

I only have 5 hours off peak (9p/kWh) so I just charge to whatever it takes in 5 hours, scheduled on the Pod Point.
I can get just under 50% charge added in 5 hours, accounting for losses, so if I start at 55% SOC I can get it to 100% plus balancing and a 35% start will take me to 80%ish in 5 hours.
More often than not, I go from just under 50% SOC to 80% using the Pod point schedule and setting the battery saver mode in the car to 80% SOC.

Is that for an LFP battery thr OP was asking about

 

[LukeTim]

Save yourself a lot of reading and do this: charge as little as you need and as often as you need, but at least once a week charge to 100% and balance the battery on a slow charger, and once every 3 to 6 months charge from below 10% (as low as you like) to 100% including balancing.

That’s what is written in the manual, and the conclusion you will come to after reading countless research papers and watching countless videos.

I treat my LFP as a petrol tank. No difference. It’s going to outlast the car.

Is it definitely once a week to do the 100% balance? I thought it was once a month...

 

[fnegroni]

Is it definitely once a week to do the 100% balance? I thought it was once a month...

This thread started about the LFP battery.

Is it definitely once a week to do the 100% balance? I thought it was once a month...

Once a week if used daily.
The manual actually doesn’t differentiate between LFP and NMC in such case.
Provably because either will outlast the car anyway.

 

[MGMark]

Save yourself a lot of reading and do this: charge as little as you need and as often as you need, but at least once a week charge to 100% and balance the battery on a slow charger, and once every 3 to 6 months charge from below 10% (as low as you like) to 100% including balancing.

That’s what is written in the manual, and the conclusion you will come to after reading countless research papers and watching countless videos.

I treat my LFP as a petrol tank. No difference. It’s going to outlast the car.

Thank you! I was about to ask this exact question

 

[hojnikb]

The best (and still usable) range for lithium cells is 20-70%. This way, you're adding at least 5x more cycles than doing 0-100% everytime. To an extent, it also applies to LFP cells (but less so, because they're not as sensitive being charged to 100%).. It stlll helps with their cycle life though.

But typical automotive grade LPF cells will last at least 2000-3000 cycles with 80% DoD, so that equates to alteast 500kkm+ before pack is considered EoL.

In practice, it's best to charge the battery as much as you need it for the day plus some buffer. Doesn't hurt your daily usage, but can greatly help the pack, which will degrade less and keep having a lot of range still, when you need it.

But there's other things to consider like calendar aging, temparature, fast charging and single faulty cells within a module.

 

[teejayuu]

How do I know what battery I've got? I have a Trophy.

 

[Tuareg]

NMC

 

[siteguru]

Currently, only the 51kWh battery pack is LFP ... all others are NMC.

 

[fnegroni]

51kwh for UK (type 2)
49kwh for EU (type 4)
The 49kwh pack is much quicker to charge despite only being 2kwh smaller and 15kg lighter.

 

[hojnikb]

51kwh for UK (type 2)
49kwh for EU (type 4)
The 49kwh pack is much quicker to charge despite only being 2kwh smaller and 15kg lighter.

EU has 49kWh pack already? I thought that is china exlusive?