Lithium Iron Phosphate

Yes you can swap out the current BMS to batrium and it would work fine in 48VDC setup.
Using the current bms when having multiple in series is not recommended.
 
So here are the results of the test on these K2batteries.
This is a sample of ~70 some batteries.
I tested the 5 I took with me. What do you think?
Worth it or not.
Wolf

image_kbrxgn.jpg
 
Looks like there's some good capacity to be had?
Only 1/5 with higher IR/lower capacity?
I'd buy the lot if you can use them...
 
Resurrect the dead! Batteries have been doing well. I have at least a dozen wired up with the off grid solar greenhouse aquaponics system. If my wiring wasn't so scary I'd post a pic or start a thread in the projects side of things.
 
hi everyone,
i read the post but i need clarification about if i could place 3 of those K2B24V10EB as they are in parallel for my 24v ebike currie motor. the controller ask for 20 amp apparently.
i just need it to go up a hill and make a 5 km while pedalling to helpoccasionnaly.
I dont know the bms spec does someone have the spec?

i read the image where they say 1 battery in serie max but i dont need them in series, my setup asks for 24 volt.
can i put them in parallel with their stock bms?

would i have to charge them separatly or could i charge them 3 at the same time with one charger? both are ok to me
i want to know if i can use them in parallel for my project and what i should be aware of.

thanks
 
ebike said:
i read the image where they say 1 battery in serie max but i dont need them in series, my setup asks for 24 volt.
can i put them in parallel with their stock bms?
Click to expand...
Yes you can parallel as many as you want since they are all 24V and on the same bus. You can charge and discharge them connected. The BMS is individual to each battery and will take care of it's own cells.
All the info you need is in this pdf
Also some info on paralleling.
endless-sphere.com

K2 Energy battery packs in Goped ESR750

Hi people! Please help with some advise. I got my hands on 4 K2B24V10EB packs from K2 Energy (http://sunshineworks.com/downloads/k2-lithium-batteries/K2B24V10EB-K2-Lithium-Battery-24-Volt%20-10-Amp.pdf). I plan to wire them in parallel and implant into my Goped ESR750 that currently runs a...
endless-sphere.com endless-sphere.com
Wolf
 
hi wolf,

some say that since we dont know the bms s caracteristic, the questions of putting them in parallel becomes will the BMS' co-exist and be friendly to each other?

do you have info on the bms ?

did you or other happen to have actually placed the k2 in parallel and confirm that the bms are friendly to each other can coexist? Something about discharge and "fight" each other too much in balancing all the cells
 
ebike said:
Something about discharge and "fight" each other too much in balancing all the cells
Click to expand...
Info from the web
k2battery.com

How To - K2 Energy Solutions, Inc

COMMON USER MANUAL FOR K2 ENEGY SOLUTION’S 12V and 24V BATTERIES This USER MANUAL covers K2B12V11EB, K2B12V22EB, K2B12V-U1, K2B24V11EB and K2B24V-U1 batteries. These batteries are broken out into two groups: 12V and 24V after a discussion of common items. UPON RECEIPT The most important thing...
k2battery.com k2battery.com
All of the K2 batteries listed have a Battery management System installed, referred to as a PCM (Protection Control Module). The PCM provides a low voltage cut off, based on the lowest cell voltage, typically around 2.0 V to 2.5 V (8 V – 10 V for 12 V batteries and 16 to 20 V for 24V batteries), a high voltage cutoff, once again based on the highest cell, typically 3.7 V to 3.9 V (14.8 V to 15.6 V for 12 V batteries and 29.6 V to 31.2 V for 24 V batteries. These can vary a little according to the balance condition of the battery.

When the high or low cutoffs are out of these ranges it is likely a sign that battery needs to charged and balanced for a day or more. Balancing is accomplished at the end of the charging cycle so it is important to fully charge and balance your battery periodically, typically once a year.

Also a quick chat session with an AI and I should have an answer in my mail box soon.
I will share this with you when I get it.
However the K2B24V10EB is its own entity just like a led acid except it is "smart". The BMS/PCM wont let it overcharge or over discharge.
You can put them in parallel to the moon and back and it should not matter. Nevertheless I will wait for the answer from K2.
Wolf
1689797442608.png
 
🎺UPDATE🎺
Right from the horses, I mean K2 Engineering mouth.
ebike said:
some say that since we dont know the bms s caracteristic, the questions of putting them in parallel becomes will the BMS' co-exist and be friendly to each other?
Click to expand...
Some Say and who are the some?
1drv.ms

GT - 1689805149362.mp4

MP4 File
1drv.ms

Anyway no worries on how many you want to put in parallel
Wolf
1689801196603.png
 
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