Why LFP Packs Degrade Faster in Nairobi Than in Paris — And What You Can Do About It
Nairobi sits at 1,795m elevation. Ambient temperatures swing 14°C between dawn and afternoon. We ran the numbers on what that does to LFP calendar aging...
SEM-1 Hardware Teardown: Every Component Choice We Made and Why
We designed the SEM-1 to survive 65°C inside a parked EV in Lagos in July. Here's what that required at the component level...
Using Extended Kalman Filters to Estimate Battery SoH on a 2G Budget
Running an EKF on edge hardware with 256KB RAM and spotty connectivity requires some compromises. Here's the approach we landed on...
How Stima's Charge Routing Plan Reduced Average Charger Wait Time by 23 Minutes
The dispatch plan isn't just "go to the nearest charger." It models queue depth, route distance, and pack health simultaneously...
Building Offline-First Telemetry for Markets Where 4G Is the Exception
Most IoT architectures assume connectivity. We had to design for its absence. The 72-hour local buffer was not our first idea — and the first two ideas failed...
OBD-II vs CAN Tap: What Africa-Market EVs Actually Expose
Bajaj RE Electric, TVS iQube, and Zembo Pikipiki all handle diagnostics differently. Here's what we found when we opened each one...
From 31% to 8.3% False Positives: Tuning Our Battery Failure Classifier
Early versions of the degradation alert fired too often. The cooperative managers stopped trusting it. Here's how we fixed the signal-to-noise ratio...
We Raised €2.2M from Renew Capital. Here's What We're Building Next.
We didn't go looking for a VC who understood Africa-market EVs. We went looking for one who had skin in the game. Renew Capital has both...
Six Months with a Nairobi EV Cooperative: Field Notes on Fleet Battery Reality
Before writing a line of production code, Jason spent six months watching batteries fail. These are the observations that shaped every design decision...
InfluxDB vs TimescaleDB vs QuestDB: Which Time-Series Database for High-Volume Telemetry?
We tested all three at 50,000 simulated vehicle writes per second before picking one. The benchmark results were not what we expected...
NMC vs LFP in Tropical Climates: A Practical Guide for EV Fleet Buyers
The chemistry question matters more at the equator than it does in Europe. Here's what the data from 12 months of field monitoring tells us...
How a Telegram Bot for a Nairobi Boda-Boda Cooperative Became Stima
The first version was a Python script, a $35 Raspberry Pi Zero, and a WhatsApp group. The cooperative manager called it "the thing that tells me which bike is lying."