24v 32ah 828.8wh SPIM08HP 7s4p + STEEL ENCLOSURE + FANS
These batteries come with a steel enclosure which can also be mounted.
If you need a 48v battery you can buy 2, charge up each module, then connect in series and add a 14s BMS.
Each module has 28 cells, busbars, holders, and already in 7s4p 24v configuration with proper compression and mounting brackets. You even get posts to add your BMS balance leads with ring terminals. The balance wires from the bottom of the battery come to the top so you do not need to remove the base to add your BMS. It is super easy to add a BMS to this unit. This module is built to push 300 amps continuous and can pulse over 600 amps! This is a true power module, if you need a lot of power in a small space this is what you want. Or if you want to power a forklift, golf cart, trolling motor, RV, high power E-bikes, etc.
You also get 2 12v fans. If you want you can actually set up a temperature system that triggers the fans on and off. Each fan has a positive and negative wire. To power the fans with this battery you can connect the fans in series to make a 24v fan system. Use a temperature sensor to trigger the fans on and off. The fans will blow air through the enclosure as they are built for that. You can also add a heating element to these batteries which we also sell and they fit inside the hole where the fans are. In theory you could have over temp trigger just the fans and under temp trigger the fans and heating element.
These were used for starting generators so they have not cycled too many times.
The fan assembly unscrews within seconds if you want to remove that part. The enclosure is just screws as well. We recommend keeping the enclosure together because it is steel and adds a nice layer of safety. Just remove the top of the case to gain access to add your BMS.
Module weight is roughly 40 lbs.
Pack Dimensions 14" long x 7" wide x 10" tall
Fully charged voltage 29.4v (4.2v per cell)
Nominal voltage 25.9v (3.7v per cell)
Fully discharged voltage 19.6v (2.8v per cell)
The busbars are copper and depending on the temperature amperage rating you can easily push much higher than we stated earlier. The cells themselves being in 3p configuration in theory can be charged up to 360 amps and can discharge at 600 amps. Of course we don't recommend to push any battery to their maximum levels. Also these are not your typical 300-800 cycle lithium cells, these are rated for over 2000 cycles and many of our customers have built these cells into their own modules before we were finally able to negotiate getting the entire modules with the busbars and holders.
CHECK OUT THE SPECS BELOW, THESE ARE REAL SPECS FOR THE INDIVIDUAL CELLS.
Material Li-ion
Typical capacity 8-9AH
Nominal Voltage 3.7V
Weight around 300g
Dimensions of cell body: 9x138X190mm
Dimensions of cell with tabs 9x138X210mm
Dimensions of cell holder:6 & 5/8th x 5 & 5/8th by 3/8th inches
Internal Resistance ≤0.8mΩ
Max Charge Rate 120A
Recommend Continuous Discharge Rate 200A
Pulse Discharge Rate（3 seconds） 400A
Fully Charged voltage 4.2V
Discharge cut off voltage 2.5V
Working Charge Temp 0~50°C
Working Discharge Temp –20°C~50°C
Storage Temperature –20°C~50°C
Applications
e-bikes, powerwalls, car audio, golf
carts, forklifts, UPS, solar system, etc.
Cycle life
2000 cycles to 80% with 100% DOD
under normal temperature
Advantages
safety, environment-friendly, high
discharge current, low capacity loss,
super-long cycle life.