Lithium Battery Cycling at Partial State of Charge
Most buyers read a lithium battery datasheet, find a cycle-life number, and build a duty plan around it. That number was measured at one depth of discharge…
Lithium Battery Degradation Modeling and Warranty
After enough years on pack benches and warranty review calls, I have learned one uncomfortable truth: most lithium battery warranties are written from opti…
Sodium-Ion Battery for Two-Wheeler Fleets
In the last eighteen months, fleet operators from Jakarta to Nairobi have asked me the same question in almost the same words: can a sodium-ion battery sur…
Lithium Battery Deep Cycle vs Starter Applications
Most battery bank failures I investigate come down to one thing: the wrong architecture. Not a bad brand, not a defective batch — the wrong build. A cran…
Semi-Solid State Battery Degradation Mechanisms Explained
I have spent the last four years pulling semi-solid cells apart after they failed. Not the dramatic failures
thermal runaway, venting, fire but the quiet o…
Home Energy Storage in Hot Attics and Garages
Every residential installer has the same conversation weekly: “can we put the home energy storage battery in the garage, or up in the attic?” The answer is…
Sodium-Ion vs LFP for Grid Storage: Duration and Cost
I have spent the last decade specifying battery energy storage systems for utility and commercial projects, and almost every procurement conversation now s…
Semi-Solid State Battery Fast Charge Capability and Limits
Pulling 4C out of a semi-solid state pack sounds like a spec sheet triumph until you watch a thin slice of anode under a reference electrode and see lithiu…
Lithium Battery Performance for Power Tools: An Engineer’s
Two packs sit on my bench this morning with the same label: 18 V, 5.0 Ah, 90 Wh. One rips thirty cuts through 2x lumber on a 6-1/2″ circular saw before the…
Drone Battery Cycle Life
I still remember the first fleet of mapping drones we qualified back in 2019. The data sheet promised “500 cycles” on every drone battery, yet the operator…