Field notes for remote JK-BMS monitoring.
Engineering updates, compatibility notes, release announcements, and setup guidance.
Recognizing Abnormal Self-Discharge
A resting battery that loses charge faster than expected may have a parasitic load, measurement drift, contamination, or an internal issue.
A Practical Battery Capacity Check
A controlled discharge between known endpoints provides more useful capacity evidence than guessing from age or voltage.
Understanding Positive and Negative Battery Current
Current direction conventions differ between monitors, so charging may appear positive in one system and negative in another.
Why Coulomb Counters Drift
Current integration is valuable for estimating state of charge, but small measurement errors accumulate over time.
What Cell Voltage Delta Actually Tells You
Cell delta is the gap between the highest and lowest cell voltage at a given moment, not a complete battery health score.
Why Pack Voltage Alone Is Not Enough
A normal-looking total pack voltage can hide one cell approaching a limit while another remains comfortable.
Why LFP Voltage Looks Flat Through Mid-Charge
Lithium iron phosphate cells have a relatively flat voltage region through much of their usable range.
State of Charge vs State of Health
State of charge estimates how full a battery is now; state of health describes how its usable capability compares with its earlier condition.