markz
100 TW
I got this stuck in my head, so I figure I will see if its rationale. I just want to save $60 in buying a 2nd charger.
LiFePO4 and Li-Ion chargers; Can one be used with the other, if the end voltages are close?
Or is there a specific charging pattern that goes on with each charger for different chemistries.
Example #1 : 16S LiFePO4 charger from EM3ev is 58.4V and the 14S Li-Ion charger has 3 settings, 58.8V, 57.4V and 53.2V.
Example #2 : 12S LiFePO4 charger from EM3ev is 43.8V and the 10S Li-Ion charger has 3 settings, 42V, 41V and 38V.
#1- A123 M1A's will be a bit HIGHER charging LiFePO4 batteries on a Li-Ion charger. 3.67V per can on the Li-Ion charger instead of 3.65V on the LiFePO4 charger.
#2- A123 M1A's will be a bit LOWER charging LiFePO4 batteries on a Li-Ion charger. 3.5V per can on the Li-Ion charger instead of 3.65V on the LiFePO4 charger.
A123 M1A LiFePO4's are 2.3Ah and 3.6Vmax - 2Vmin. Is that a major detriment(sp) or handicap to the cans, being 0.07V higher then 3.6V? Even the EM3ev LiFePO4 charger, puts them up to 3.65V? It might be better, for longer lasting A123's to go the #2 route, 3.5V cans instead.
I have about 80 used batteries of the A123 Systems ANR26650-M1A's. I still need to test them because I took them apart awhile ago.
I'm planning the configuration now. But is there any danger for charging these LiFePO4 battery cans on a Li-Ion charger?
In the future, I highly doubt I will do this LiFePO4 chemistry again, they are just to expensive brand new. However I did read an ES thread, from 2014 about the newer/better M1B's being $5 for grade B's. For the future, I am thinking about the 18650 25R's or similar, and will be building a 20-25Ah pack. That is why I ask this question.
These A123's I currently have is just a starter "cruiser" backup pack really, after my exploding episode with the HK hardcase LiPo's.
I will go either, 57.6V 11.5Ah pack which will give me a respectable 51 km/h speed, or a 43.2V 13.8Ah pack for a slower speed of 41 km/h speed. With my 18fet Lyen, I can program the LVC easily and its all on the MXUS 3000W V2 4T in a 26" downhill rim. When I get the 18650 25R's is when I shift to a more aggressive riding habit, like building a 17" or 19" moto rim for offroading and hill climbing. I'd say in the next 4 to 6 months.
The only other question that pops into my head, will ~42V and 58.4V work on a 18fet Lyen which in the specifications says rated at 72V nominal and 65A?
Thanks for the help in advance.
LiFePO4 and Li-Ion chargers; Can one be used with the other, if the end voltages are close?
Or is there a specific charging pattern that goes on with each charger for different chemistries.
Example #1 : 16S LiFePO4 charger from EM3ev is 58.4V and the 14S Li-Ion charger has 3 settings, 58.8V, 57.4V and 53.2V.
Example #2 : 12S LiFePO4 charger from EM3ev is 43.8V and the 10S Li-Ion charger has 3 settings, 42V, 41V and 38V.
#1- A123 M1A's will be a bit HIGHER charging LiFePO4 batteries on a Li-Ion charger. 3.67V per can on the Li-Ion charger instead of 3.65V on the LiFePO4 charger.
#2- A123 M1A's will be a bit LOWER charging LiFePO4 batteries on a Li-Ion charger. 3.5V per can on the Li-Ion charger instead of 3.65V on the LiFePO4 charger.
A123 M1A LiFePO4's are 2.3Ah and 3.6Vmax - 2Vmin. Is that a major detriment(sp) or handicap to the cans, being 0.07V higher then 3.6V? Even the EM3ev LiFePO4 charger, puts them up to 3.65V? It might be better, for longer lasting A123's to go the #2 route, 3.5V cans instead.
I have about 80 used batteries of the A123 Systems ANR26650-M1A's. I still need to test them because I took them apart awhile ago.
I'm planning the configuration now. But is there any danger for charging these LiFePO4 battery cans on a Li-Ion charger?
In the future, I highly doubt I will do this LiFePO4 chemistry again, they are just to expensive brand new. However I did read an ES thread, from 2014 about the newer/better M1B's being $5 for grade B's. For the future, I am thinking about the 18650 25R's or similar, and will be building a 20-25Ah pack. That is why I ask this question.
These A123's I currently have is just a starter "cruiser" backup pack really, after my exploding episode with the HK hardcase LiPo's.
I will go either, 57.6V 11.5Ah pack which will give me a respectable 51 km/h speed, or a 43.2V 13.8Ah pack for a slower speed of 41 km/h speed. With my 18fet Lyen, I can program the LVC easily and its all on the MXUS 3000W V2 4T in a 26" downhill rim. When I get the 18650 25R's is when I shift to a more aggressive riding habit, like building a 17" or 19" moto rim for offroading and hill climbing. I'd say in the next 4 to 6 months.
The only other question that pops into my head, will ~42V and 58.4V work on a 18fet Lyen which in the specifications says rated at 72V nominal and 65A?
Thanks for the help in advance.