Journal
Notes from the battery floor
Engineering perspective on chemistry, safety and the Indian energy transition.
Chemistry12 May 2026
LFP vs NMC: choosing chemistry for Indian conditions
Ambient temperature, duty cycle and total cost of ownership matter more than headline energy density.
7 min read
Engineering28 Apr 2026
What a good BMS actually does
Beyond cut-offs: balancing strategy, state estimation and why telemetry pays for itself.
9 min read
Solar07 Apr 2026
The real payback maths of solar storage
A working model for commercial rooftops with time-of-day tariffs.
6 min read
Safety19 Mar 2026
Five lithium safety myths, tested
We ran the abuse tests so the internet arguments don't have to continue.
8 min read
Mobility02 Mar 2026
Designing packs for fleet uptime, not spec sheets
Serviceability and swap strategy beat a 5% density advantage every time.
5 min read
Sustainability14 Feb 2026
Second-life batteries: when it makes sense
Grading, warranty and the economics of reusing traction packs for storage.
7 min read