pralinebuckets
New Member
- Joined
- Jan 3, 2021
- Messages
- 59
Hey all,
I have a 16S 280Ah 48v battery. I built it and top balanced a while back and recently installed a jk active balancer to get things closer to where they ought to be when fully charged. I have it set to engage when a cell hits 3.45V.
While charging from say 75%-97%, cell 2 will be consistently higher voltage than the rest of the pack, occasionally as high as ~4.45V (though not staying there long if I set the max charge to 56.5V). When the charge is stable and the amperage of the charge starts to drop, that cell then becomes the lowest voltage in the pack by far. Things are pretty far out of kilter in general right now, but while I wait for the balancer to do its thing and pull the rest of the cells closer together, I'm curious about what this behaviour implies about Cell 2.
When not charging, the cells sit pretty close together. Generally within 0.005V of each other while under low load (1-2A). With higher load, the differences in delta v start to show up, which is why I figured adding an active balancer would be wise.
I have a 16S 280Ah 48v battery. I built it and top balanced a while back and recently installed a jk active balancer to get things closer to where they ought to be when fully charged. I have it set to engage when a cell hits 3.45V.
While charging from say 75%-97%, cell 2 will be consistently higher voltage than the rest of the pack, occasionally as high as ~4.45V (though not staying there long if I set the max charge to 56.5V). When the charge is stable and the amperage of the charge starts to drop, that cell then becomes the lowest voltage in the pack by far. Things are pretty far out of kilter in general right now, but while I wait for the balancer to do its thing and pull the rest of the cells closer together, I'm curious about what this behaviour implies about Cell 2.
When not charging, the cells sit pretty close together. Generally within 0.005V of each other while under low load (1-2A). With higher load, the differences in delta v start to show up, which is why I figured adding an active balancer would be wise.