Sillyputty
Solar Enthusiast
- Joined
- Jul 21, 2020
- Messages
- 188
I've contacted Steve from Overkill several times on this and haven't heard back. Perhaps others here can shed some light on what's going on. The discussion thus far:
"Hi Steve - I have two of the JBD Overkill BMS's for two separate 4S 280AH battery packs. One I've used throughout the year in a camp trailer, the other I've recently finally completed and have run a few cycles on.
On one occasion (with both BMS's) running within specs (~ 1000 watts continuous) I've experienced where the BMS overheats substantially (20+ degrees centigrade) over the already set discharge limit of 70c without shutting down or showing an overheating error in the app. The first time I shut it down, the second one (newer BMS) shut itself down at ~100c. Both times were while I was monitoring them so no harm done..."
I'm using the latest android app from your website.
Is this a know issue?
And:
"Hi Steve - I've received no reply on this. I have found it happening again, and for some reason it only happens when the charging is disabled in the BMS settings. When doing a stress test, I disable charging in the BMS settings to prevent the battery from being influenced at all from outside power from any solar panels or other chargers that may be hooked up.
Turning the charging back on in the BMS settings alleviates the overheating issue, at least AFAIK so far.
1) Is this normal?
2) What is causing this?"
EDIT: to include that the BMS's have the default settings that Overkill provides when it's ordered.
Thanks
"Hi Steve - I have two of the JBD Overkill BMS's for two separate 4S 280AH battery packs. One I've used throughout the year in a camp trailer, the other I've recently finally completed and have run a few cycles on.
On one occasion (with both BMS's) running within specs (~ 1000 watts continuous) I've experienced where the BMS overheats substantially (20+ degrees centigrade) over the already set discharge limit of 70c without shutting down or showing an overheating error in the app. The first time I shut it down, the second one (newer BMS) shut itself down at ~100c. Both times were while I was monitoring them so no harm done..."
I'm using the latest android app from your website.
Is this a know issue?
And:
"Hi Steve - I've received no reply on this. I have found it happening again, and for some reason it only happens when the charging is disabled in the BMS settings. When doing a stress test, I disable charging in the BMS settings to prevent the battery from being influenced at all from outside power from any solar panels or other chargers that may be hooked up.
Turning the charging back on in the BMS settings alleviates the overheating issue, at least AFAIK so far.
1) Is this normal?
2) What is causing this?"
EDIT: to include that the BMS's have the default settings that Overkill provides when it's ordered.
Thanks
Last edited: