Hey Folks,
First thread and I thought I would share my info thus far and into the future on the NINTHCIT 120AH cells. This is my first foray into the DIY lithium setups. I decided to go this route for a couple reasons but mostly because I want to learn about Lithium batteries and like a good challenge. This battery will be added to my camper van which has a giant extremely heavy 4D 210AH battery. I am already blown away at how small this setup will be and I can tuck it inside a cabinet in the van. There are other better deals that have come up, but I still wanted small batteries and 120AH is no joke and will certainly run lights, heater, and fridge in my van for a long period of time. I won't save any money on this build vs a store bought because I also picked up a power supply and some other items. Fingers crossed that my Daly BMS is not a dud, but later on that when I get it hooked up.
Ninthcit is on Amazon and Aliexpress. I paid 450 which included shipping. A little pricey but they are advertising this as stocked in California so I thought that might help me out if I have an issue. I also wanted to get started and not roll the dice with shipping from China. Batteries arrived 2 weeks to the day from ordering and was in their advertised window. I am skeptical that these are actually stocked in the US and they advertise them as being checked for compatibility. They were very well packaged and came with 8 busbars and the appropriate studs and nuts. Busbars are thin, but are plated copper, I checked with a file.
Each battery was in a little box with foam and then they were inside a bigger box with lots of foam. Again, well packed and outer box had no damage.
So I labeled the batteries and checked their voltages
I gotta say, very nice. So far NINTHCIT is true to their word, batteries were all spot on for voltage. Only thing I can really see is that along the big side faces of the batteries they seem to be a bit bulged in the middle. I plan on compressing them slightly when I build a holder/enclosure.
One thing I am not sure on is that when I tested the internal resistance they all were about 350 milliOhms, meter was bouncing around a bit when i was doing it like 10 or so milliOhms. But they were all very close when I metered them.
Next step is a slow top balance. I plan to walk them up incrementally from 3.4 to 3.5 to 3.6 and keep checking the balance of each cell to see if I have any that lag or lead too much. So far so good.
First thread and I thought I would share my info thus far and into the future on the NINTHCIT 120AH cells. This is my first foray into the DIY lithium setups. I decided to go this route for a couple reasons but mostly because I want to learn about Lithium batteries and like a good challenge. This battery will be added to my camper van which has a giant extremely heavy 4D 210AH battery. I am already blown away at how small this setup will be and I can tuck it inside a cabinet in the van. There are other better deals that have come up, but I still wanted small batteries and 120AH is no joke and will certainly run lights, heater, and fridge in my van for a long period of time. I won't save any money on this build vs a store bought because I also picked up a power supply and some other items. Fingers crossed that my Daly BMS is not a dud, but later on that when I get it hooked up.
Ninthcit is on Amazon and Aliexpress. I paid 450 which included shipping. A little pricey but they are advertising this as stocked in California so I thought that might help me out if I have an issue. I also wanted to get started and not roll the dice with shipping from China. Batteries arrived 2 weeks to the day from ordering and was in their advertised window. I am skeptical that these are actually stocked in the US and they advertise them as being checked for compatibility. They were very well packaged and came with 8 busbars and the appropriate studs and nuts. Busbars are thin, but are plated copper, I checked with a file.
Each battery was in a little box with foam and then they were inside a bigger box with lots of foam. Again, well packed and outer box had no damage.
So I labeled the batteries and checked their voltages
I gotta say, very nice. So far NINTHCIT is true to their word, batteries were all spot on for voltage. Only thing I can really see is that along the big side faces of the batteries they seem to be a bit bulged in the middle. I plan on compressing them slightly when I build a holder/enclosure.
One thing I am not sure on is that when I tested the internal resistance they all were about 350 milliOhms, meter was bouncing around a bit when i was doing it like 10 or so milliOhms. But they were all very close when I metered them.
Next step is a slow top balance. I plan to walk them up incrementally from 3.4 to 3.5 to 3.6 and keep checking the balance of each cell to see if I have any that lag or lead too much. So far so good.