Beginners guide to batteries
- Thread starter paintboy
- Start date
Yes 1 amp. How do you set discharge voltage limit. It stops at about 3,5 and always 119 minutes 59 secs.
That's about 710 mah
Just found the setting for the safety charge which makes sense as it's for 120 minutes. So my cell is discharging for 2hours max.
If I disable that somehow would the cell have a chance to discharge more than the 700 I'm getting?
It's all experience!
If you were discharging for 2 hours at 1A, you would see 2000mAh at bottom right, so you must be misunderstanding something.
The reason it stops at 2 hours is because that's the default safety setting. Download an instruction manual, so that you know how to work the charger.
The reason it stops at 2 hours is because that's the default safety setting. Download an instruction manual, so that you know how to work the charger.
go in to the settings and turn off the safety timer page 16
Yep, done that so hopefully I ll get more capacity. When I ve sussed it out with these cells I'll be happy to get some decent ones
It's just discharged to 969 mah and 172 minutes. So it seems turning the timer off was the problem
you must be discharging the cells at 0,5A for it to take that long but if you turn the amps up it takes less time but you will get the same result.
this is the cell in the pic
this is the cell in the pic
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Hi, ethe cells are discharging to around 950mah now. Still crap but now the timers off they go down to 3.1v instead of 3.5. Question is when I get cells of approximately 3000 mah what sort of difference is acceptable when making parallel connection?you must be discharging the cells at 0,5A for it to take that long but if you turn the amps up it takes less time but you will get the same result.
this is the cell in the pic
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The Tech Shed highly rated Seller fully stocked UK and NI company Thanks for looking at our, 2 X Genuine Panasonic 18650 3400mAh Rechargeable Battery NCR18650B With FreeCASE We use this powerful high capacity genuine (Grade A) Panasonic bare cell to build Orbtronic-Panasonic Protected version...www.ebay.co.uk
Eg. I've got a cell of 929, 956 and 1021. If these were together is there too much of a gap. I ll do it anyway and note the results, just wanted an opinion
Certainly true. But if you aren't yet practiced at building batteries that may be no bad thing. Make your mistakes on the first one that is going to be rubbish anyway, and the build the one you are going to use correctly.
A part from there shagged, the mah rating of any battery is the lowest cell rating. Although the average mah is 968, 929 is the rating as one can't get more out of them once the lowest one reaches it's discharge target.
New question in my quest for knowledge.
I discharged 5 cells and the average was 1015. Only 30 mah between highest and lowest.
So put them together as 5p cell. Charged it and discharged it and only got 3717 mah.
Just the cells being crap, or charger getting bored?
2.99 is to low id not go lower than 3.2v as the voltage falls off a cliff going any lower.
when you put 5 cells as 1 pack it is as only as good as the weakest cell voltage wise so some cells might have a bit more left in them but only on there own.
so when 1 cell in the pack reaches cut of voltage it will stop discharging the hole pack.
like it only takes 1 cell in a pack of 40 to go bad and the bms stops charging the pack
when you put 5 cells as 1 pack it is as only as good as the weakest cell voltage wise so some cells might have a bit more left in them but only on there own.
so when 1 cell in the pack reaches cut of voltage it will stop discharging the hole pack.
like it only takes 1 cell in a pack of 40 to go bad and the bms stops charging the pack