Batteries

From
Revision as of 19:54, 24 May 2020 by Tim (talk | contribs)

Problem

Solar PV panels are inexpensive and durable. As are the power conditioning electronics. Batteries, however, are expensive, prone to failure, and often discarded as trash. Can we reduce trash output while solving our expensive battery problem?

Solution

Recycle batteries from the trash stream to build new, high capacity, long lasting battery packs.

Development History

v0

Soldered 18650s, 1s120p configuration @ The Fledge

v1

Soldered 18650s, 7s20p configuration w/ 20A BMS.

v2

Based on 18650 NESE Modules. 7s7p configuration w/ 20A BMS x2, MPPT-7201A solar charge controller and DC-DC buck-boost converter, 500W motor controller, modular frame + quick disconnect pins.

v3

Purpose modeled replimat printed part w/ printed springs, zinc plated steel 5x1 plates as electrodes, lock-nutted electrode studs, USB power, 20p1s.

Off the shelf

References

Cell testing

Categories: Energy