Charging up a power bank

[Archev]

Split from Great day out with your MG? Post up a picture.

When I got back to the car in Perth, I found the lights were on and I assume must have been since I left the car.
So of course, the 12 V battery was almost totally dead.
I got the power bank out from under the passenger seat, coupled it to the 12 V battery for a minute or so and powered up the car.
I’ve plugged the power bank to the mains on coming home for half an hour or so and it’s now almost full.

 

[Gomev]

I’ve plugged the power bank to the mains on coming home for half an hour or so and it’s now almost full
I must check with the idiot who parked the car and See why he left the lights on ??

Does the 80% rule apply to power banks ?

 

[Archev]

Does the 80% rule apply to power banks ?

Good question- I always plug it in until I get the solid green light as I thought it was supposed to be. Whether that’s a full 100% level or an 80% built in safety indicator I can’t answer.
I’ll check the paperwork in the box.

 

[Archev]

Good question- I always plug it in until I get the solid green light as I thought it was supposed to be. Whether that’s a full 100% level or an 80% built in safety indicator I can’t answer.
I’ll check the paperwork in the box.

According to the instructions for my
NOCO boost plus GB40 unit they advise charging to 100% as indicated by the four leds on the unit. The final (100%) led is green and when it stops flashing it has reached 100%.
They advise charging the unit periodically but not to leave it charging for more than a week at a time.

I’m guessing the “full” indicator must already allow a generous buffer at the top end of the charging requirement of the unit.

 

[Gomev]

According to the instructions for my
NOCO boost plus GB40 unit they advise charging to 100% as indicated by the four leds on the unit. The final (100%) led is green and when it stops flashing it has reached 100%.
They advise charging the unit periodically but not to leave it charging for more than a week at a time.

I’m guessing the “full” indicator must already allow a generous buffer at the top end of the charging requirement of the unit.

Interesting. I hadn't thought about it before, but it all seems to contradict everything we are advised not to do about our EV batteries. Charge it to 100% and leave it for weeks possibly months, and we all know how phone and laptop batteries last so well...not.

 

[tsedge]

Interesting. I hadn't thought about it before, but it all seems to contradict everything we are advised not to do about our EV batteries. Charge it to 100% and leave it for weeks possibly months, and we all know how phone and laptop batteries last so well...not.

It will also depend on the chemistry. I have seen it listed as using a Lithium Metal battery technology, which - if true - has quite different characteristics to the batteries we are used to.

 

[GaryMG4]

Mine came from Aldi/Lidl with a LiFePO4 battery, I fully charged it and left unused for well over a year and it quite happily poked our RAV4 into life, didn't do so well with the 2.5 diesel in the horse box though.