Updated my battery pack calculator after some feedback
▲ 2 r/18650masterrace+1 crossposts

Updated my battery pack calculator after some feedback

A while ago I posted a small battery calculator I made for myself, and got some useful feedback from people here.

I've made a few changes since then.

The calculator now lets you select the cell chemistry, enter the maximum discharge current of a cell, and choose the power consumption instead of always assuming 1000 W.

It also calculates things like:

  • total number of cells
  • pack capacity in Wh
  • capacity per cell
  • minimum / maximum pack voltage
  • estimated maximum battery current
  • approximate runtime

For example, you can enter something like 14S8P, the pack voltage, cell capacity and discharge current, and it calculates the rest.

I also fixed some input validation issues and added English/Russian language support.

It's still a fairly simple tool, but I found it useful when quickly comparing different pack configurations.

If anyone has suggestions for calculations that would actually be useful when designing or comparing battery packs, I'd be interested to hear them.

Project: https://github.com/Suzixx/BatteryCalculator

Calculator: https://batterycalculator.vercel.app/

u/FireBoy_YT — 8 days ago
▲ 3 r/batteryguru+2 crossposts

I built a small Li-ion battery calculator — looking for feedback

I made a simple web-based calculator for quickly checking DIY Li-ion battery configurations.

You can enter:

  • Nominal voltage
  • Battery capacity (Ah)
  • Cell configuration (e.g. 14s8p, 13s6p)

It calculates:

  • Energy capacity (Wh)
  • Capacity of an individual cell
  • Cell voltage
  • Minimum and maximum pack voltage
  • Estimated runtime at 1000 W

It also supports English and Russian.

I built it from scratch using vanilla HTML, CSS and JavaScript and deployed it with Vercel.

I'd really appreciate feedback on the calculations and suggestions for useful features I could add.

Live demo: https://batterycalculator.vercel.app/
Source code: https://github.com/Suzixx/BatteryCalculator

reddit.com
u/FireBoy_YT — 9 days ago