SK24V100 | SOK 24V 100Ah LiFePO4 Battery

Quality seems excellent, but more information needed about setting up with various MPPT controllers like MidNite Classic for instance.

Here is a set up tutorial I wrote,

Program Midnite Classic MPPT Controller for 24 volt SOK LiFePo4 batteries

(Double check all wiring and ensure all breakers are off).

Necessary controller settings are derived from the Lithium Battery specifications.

Lithium batteries do need to include a built in Battery Management System (BMS).

The SOK 24volt 100AH LiFePo4 battery's recommended charge voltage is 29.2 volts.

1. Switch on PV panel breaker or combiner and ensure PV panel voltage is OK.

2. Switch on the Battery + to MidNite Controller and the PV+ to MidNite Controller PV in breakers. (If things are installed correctly the MidNite Classic Controller should power up and display the setup screen.)

3. Push the Main Menu button on the MidNite Controller Using the right and left arrow buttons scroll until (Charge) is highlighted then press the enter button.

Note: SOK LiFePo4 batteries have built in BMS (Battery Management Systems) and do not use the Equalization function so these instructions effectively disable equalization mode.

4. Select (Volts) and press the enter button.

5. Select (Float) and use the up and down arrows to set the voltage to 27.6 volts.

Current Connected recommends 27.6 volts for SOK 24 volt 100AH battery

6. Select (Absorb) and set the voltage to 29.1 volts. (Need -.1 volt for MidNite)

Current Connected recommends 29.2 volts for SOK 24 volt 100AH battery

7. Select (EQ) and set the voltage to 29.2 volts. (Do not set higher than this.)

Current Connected recommends 29.2 volts for SOK 24 volt 100AH battery

Note: you can set EQ to as little as a tenth of a volt over Absorb = 28.9 volts.

8. Hit the Enter button to save the values.

9. Press the Main Menu button to back up 1 menu.

10. Select (ChgTime) and press the Enter button.

11. Set the Absorb time to 15 minutes (00.05) and set EQ to zero minutes (00.00).

Current Connected recommends Absorb 15 minute for SOK 24v 100AH battery

12. Hit the Enter button to save the values.

13. Press the main menu button to back up 1 menu and select (T-Comp).

14. Ensure the number in front of mV is highlighted and use the down arrow to move the value to zero (which will now show as (DISABLED).

15. (EQ Comp'd) should say (NO).

16. Hit the Enter button to save the values.

17. Press the main menu button to back up 1 menu to the (Battery Menu).

18. Select (EQ) and press the enter button - EQ STOPPED should be highlighted.

19. Push the upper right keyboard button to select (AUTO EQ).

20. Ensure that under (AUTO) it is set to (MANUAL) which disables Equalize.

21. Press the main menu button twice - Should be complete.

Bought the batteries about 2 months ago, and have been using the off-grid full-time for 10 weeks. Batteries are performing flawlessly.

One issue that I think should be looked at is a final confirmation on the product info (from the source, aka, SOK) on the FULL charging parameters for the batter for MPPT controllers and Inverters! The community forums are all over the place for where they hear their information and what is right or wrong for settings. Paul

Just recently installed. havent went thru a complete cycle yet. I like that it is user serviceable if ever required.Also like the included terminal covers. App doesnt work well on my phone is the only neg.

Provides stable, long lasting power to a fridge, chest freezer, workshop and more!

Sturdy build, nice appearance, and most importantly, they do the job!

I live off grid and my business is to set people up with complete off grid systems to include solar arrays, charge controllers, inverters, propane generators, and of course the heart of the system, batteries. SOK delivers excellent quality at a more reasonable price point than their competitors.