batteryshed77
New member
- Joined
- Nov 12, 2020
- Messages
- 15
I'm experiencing some frustrating behaviour at the top of charge when charging my battery with Batrium Watchmon 5 Plus BMS & am wondering if anyone has a solution.
Basically up to about 85% I'm charging at max power, no problems. Above this, voltage limits start to be hit and so power is reduced - perfect.
However.... the BMS isn't smoothly curtailing the power, it's modulating the charge current limit between 0 - max - 0 - max - 0. Not only is this not maximising my opportunity to charge my battery, but can't be good for the lifetime of my charger either.
Here's the resulting profile.
I can change this profile by modifying the time it takes the BMS to keep charging when voltage limit exceeded, and the gap until it tries to charge again - but the pulsing behaviour stays the same.
I've got 'Delay Transition - Stop' set to 10s & 'Delay Transition - Restart' set to 20s at the moment.
What I'd like is for the Batrium to slowly reduce the charge current limit until the max voltage isn't exceeded - is that so much to ask? Hopefully the setting exists in some form which I haven't been able to discover... any help appreciated!
Basically up to about 85% I'm charging at max power, no problems. Above this, voltage limits start to be hit and so power is reduced - perfect.
However.... the BMS isn't smoothly curtailing the power, it's modulating the charge current limit between 0 - max - 0 - max - 0. Not only is this not maximising my opportunity to charge my battery, but can't be good for the lifetime of my charger either.
Here's the resulting profile.
I can change this profile by modifying the time it takes the BMS to keep charging when voltage limit exceeded, and the gap until it tries to charge again - but the pulsing behaviour stays the same.
I've got 'Delay Transition - Stop' set to 10s & 'Delay Transition - Restart' set to 20s at the moment.
What I'd like is for the Batrium to slowly reduce the charge current limit until the max voltage isn't exceeded - is that so much to ask? Hopefully the setting exists in some form which I haven't been able to discover... any help appreciated!