Uploaded March 2026 | Updated September 2026, 2 weeks ago

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One of my LiFePO4 batteries had failed. In this video, I did some analysis on the failure mode.

Review of the CYCLENBATT 12V 100Ah Battery with Bluetooth: youtu.be/wU88AZJAsYQ
FNRSI HRM-10: https://ban.ggood.vip/151g7
youtu.be/qLrJt0llsJU
youtu.be/wopbVG-tMZc

00:00 Overview
01:11 Teardown
03:54 Cell voltages
05:08 Internal resistance
07:06 Discharging test
08:04 Charging test, conclusions