How to Write Electrical Requirements a Pack Builder Can Quote
Seven linked decisions, from voltage window to capacity and peak current: what each one does to the quote a pack builder can actually give you.
Electrical Performance Requirements
Voltage, capacity, continuous and peak C-rate, duty cycle, and cycle-life targets translated into a written pack specification.
Average Load Is the Wrong Input for Choosing a Cell Chemistry
Average load hides the short peak that actually sizes the cells. Build a C-rate histogram from the current trace and give suppliers a number they can quote.
Your Pack's Ah Rating Is Only Real at a Stated Discharge Rate
An amp-hour rating without its discharge rate, temperature, and cutoff voltage is a placeholder. Here's how to write those conditions into a pack spec.