Using Lithium Batteries

[wildebus]

I have always said that this idea of only charging your Lithium Batteries to 80% and then only Discharging to 20% is a load of Balony. It is often stated as the way to best look after your Lithium (LiFePO4) Batteries, but really is a nonsense.

Just came across this Video posted yesterday by Will Prowse, who a lot of people regard as THE god of Lithium and Solar and it is good to see he is dispelling this myth. Maybe more people will believe him and use the blooming batteries they bought properly and fully!

I am starting the Video at the point he discusses about charging and discharging levels .... Also watch all to the end!

Remember - Use that Battery!

 

[St3v3]

People still in NiCad era

 

[Okta]

Hooray, thanks for posting that. Far too many of us seem to be getting hung up on the wrong issues.

 

[wildebus]

When I saw the title of the YouTube video I thought "oh no, not more 'don't charge past 80% or go below 20%' stuff, but I was so pleasantly surprised had to share it

I also liked how he correctly stated that the weak point in a Lithium Battery is the BMS module. This is why it is so useful to have batteries which can be serviced and the BMS can be replaced (it was always daft having to throw away a perfectly viable battery due to a simple electronics failure).

 

[Okta]

When I saw the title of the YouTube video I thought "oh no, not more 'don't charge past 80% or go below 20%' stuff, but I was so pleasantly surprised had to share it

I also liked how he correctly stated that the weak point in a Lithium Battery is the BMS module. This is why it is so useful to have batteries which can be serviced and the BMS can be replaced (it was always daft having to throw away a perfectly viable battery due to a simple electronics failure).

Serviceability was one of the reasons I chose a Roamer battery for my new van.

 

[Pudsey Bear]

Not on the same plane, but after 3 days (effectively) the scooter lithium battery is still showing as full on the LED bar, so I've left them alone, I'll let it dip into the yellow section then swap the battery over to a full one and give it a charge, the scooter is outside in the cars boot overnight.

 

[Sonar]

Mine lived in the back of the car and the battery inside the house.

However the longest trip with the furthest to walk and left the battery at home..

Now the whole lot is left of home now and the battery gets checked and topped up every 3 months
Or the day before I need to use it.

 

[Pudsey Bear]

I charge once a month as advised when not in use, mine has a crap design where you can't get the battery out when it folded up

 

[Sonar]

Mine is easy to remove to charge or leave it on the scooter to charge.

Well was mine just passed it on to someone ..

 

[Pudsey Bear]

That was what I was looking for for the car Fred, mine is far too big and hurts my back but no other choice.

 

[nabsim]

I have always disregarded this 80% 20% stuff but its easier to let folks think what they want than keep repeating stuff lol

When I bought my Lifepo4 both the manufacturers and Will stated its okay to use 100% - 0% so that's what I have done. Well not strictly, I take 20% as an action point knowing I haven't got much left so for some charging.

 

[Sonar]

Mine seem to be fully charged since I fitted them the Victron app shows a few things about them but as far as I know with the solar nothing changed even when we used as much as we could use all lights awning light tv and sound bar fridge water pump .
Nothing seems to have used anything we could see at the time. So an 80. And 20 whatever never bothered us .

I just assume the victron b2 b controls it all no idea myself .
After it was wired with full instructions from member wildebus nothing seems to have changed …

 

[Coundonroad]

I always charge to 100%.
No issues.

 

[Exwindsurfer]

I have always said that this idea of only charging your Lithium Batteries to 80% and then only Discharging to 20% is a load of Balony. It is often stated as the way to best look after your Lithium (LiFePO4) Batteries, but really is a nonsense.

Just came across this Video posted yesterday by Will Prowse, who a lot of people regard as THE god of Lithium and Solar and it is good to see he is dispelling this myth. Maybe more people will believe him and use the blooming batteries they bought properly and fully!

I am starting the Video at the point he discusses about charging and discharging levels .... Also watch all to the end!

Remember - Use that Battery!
View attachment 74645

Good video David