Updated as of August 7th 2021:
- New orders for in stock items will ship within 2 days.
- We have been waiting 2+ months for the factory to produce new 4s BMSs.
- We are now working on redesigning the 4s BMS to use available components.
- New inventory is now expected by the end of August.
We are answering emails to Support@OverkillSolar.com in the following order:
1. Incorrect orders / Warranty claims
2. Customers who have received their items and are having technical issues (if this is you, include a screenshot of each page of your app, and clear photos of your setup so we can see all of the connections. 9 out of 10 problems are an incorrect setting or an incorrect connection).
3. Status of paid orders / Cancellations
4. Technical questions from pre-purchase customers
5. Lead time questions from pre-purchase customers (These may go unanswered. Our inventory management system is not sophisticated enough to give a better estimate than is stated above)
Please remove OverkillSolar@gmail.com from your contacts, this address is being phased out.
Lastly, we put a lot of time into writing our BMS User Manual, and update it regularly to be more accurate and comprehensive. I am always happy to help, but for the good of everyone, please check the manual first, so I can focus on helping with the hard stuff.
—Download the BMS User Manual- Click Here
 | -Steve Overkill Solar support@overkillsolar.com |
Return Address:
Overkill Solar LLC
3673 Exchange Ave Suite 3
Naples, FL 34104
Is your 4s 120a bms go9d for a 12v 280ah battery. And thanks in advance
Yes it is commonly used with these cells.