Dismantling And Capacity Testing Of The Renogy Pro Lifepo4 Battery

This is testing and teardown of a replacement Renogy PRO battery following the failure of the 1st battery after capacity testing. Renogy kindly replaced the battery and are actively doing their own testing. The issue stems from the battery hitting low voltage disconnect, then refusing to charge. Again, renogy are aware and doing their own tests to try and replicate my findings.
The original Battery testing can be watched here • Renogy Smart Lithium P... with follow up video here • I Killed My Brand New ...
DCHOUSE Lifepo4 Battery Links -
These batteries are available via Amazon amzn.to/4eoGB6h and eBay - ebay.us/cBWn3I
They also have a 12V 200Ah version on eBay - ebay.us/x0xoH6 and a 24V 100Ah ebay.us/4P4QmB (clicking these links will take you to eBay)
Li-Time Mini Battery link is uk.litime.com/?ref=t2nvwo1x
or Amazon - amzn.to/4ewMjTM
Clamp Meter -amzn.to/4cyIxqX or eBay ebay.us/wwtUna
AliExpress Affiliate Links -:
5A Active balancer s.click.aliexpress.com/e/_EyP...
DL24MP 600W Battery Capacity Tester from - s.click.aliexpress.com/e/_Dn5...
DL24 150W Capacity Tester - s.click.aliexpress.com/e/_DDQ...
DL24 450W Capacity Tester - s.click.aliexpress.com/e/_DDQ...
Fogstar Drift 105Ah LifePO4 Heat/BT www.fogstar-drift.co.uk/?ref=...
---Solar Charge Controllers -
Renogy Rover 20A SCC - amzn.to/3TIWU5u
Renogy Rover 30A SCC - amzn.to/3xc2LYb
Renogy Rover 40A SCC - amzn.to/4cvln4Z
Renogy Rover 60A SCC - amzn.to/4c8i43V
Victron 100/15 (12-24V) - amzn.to/3RBPv6C
Victron 75/15 (12/24) - amzn.to/3KU28Gt
Victron 100/20 - amzn.to/3VVNyEU
Victron 100/30 - amzn.to/3VSo4If
Victron 100/50 - amzn.to/4bdQD7p
Epever 40A SCC - amzn.to/48XWzAx
Budget 30A SCC -- amzn.to/4erPJat
Battery Capacity Testers
600W DL24M ATORCH AliExpress - s.click.aliexpress.com/e/_DC4...
160W Version Aliexpress - s.click.aliexpress.com/e/_DCd...
Battery Shunts/Monitors
Victron 500A Smart Shunt - amzn.to/4crzlES
Victron 1000A Smart Shunt - amzn.to/3KUPrLB
Victron 2000A Smart Shunt - amzn.to/4c62Tbo
Budget 100A Shunt - amzn.to/3XBrvV0
Renogy 500A Monitor - amzn.to/3xsdL4l
Class T Fuses etc
320A Blue Sea System - amzn.to/4cwoqtD
110A Class T Fuse & Holder - amzn.to/3VUrSYz
Terminal Blocks - Positive - amzn.to/3z9ziPL
Terminal Blocks - Negative - amzn.to/3zcMaol
Clamp Meter I Use - amzn.to/3xj6kwr
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Ferrule Crimper & Ferrules - amzn.to/4eztQ8V
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MRBF Fuse Holder - amzn.to/4bbCuYp
300A Fuse for MRBF - amzn.to/3VykiT8
250A Fuse for MRBF- amzn.to/3Vyqw5m
200A Fuse for MRBF - amzn.to/4cOInMD
175A Fuse for MRBF - amzn.to/3xsYIY3
Victron Smart Battery Sense - amzn.to/3XzLfIH
Copper BusBars - amzn.to/4caoK1v
10 Amp Power Supply Unit - amzn.to/3zdIfrg
MC4 Connector Pack - amzn.to/4eBfHIk
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XT60 Connectors - amzn.to/4eMcczd
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ANL fuse holders- amzn.to/3VRn9rt
100 Pce Copper Terminals - amzn.to/4cwJi48
Inverters------
Edecoa 3500W - amzn.to/4cxwM46
Renogy 3000W - amzn.to/3KR9NVY
12V 1000W PSW Inverter - amzn.to/3KSJYow
24V 3000W Inverter - amzn.to/3VA56VF
Eco-Worthy( NEW RELEASE) - 2000W Inverter - uk.eco-worthy.com/products/20...
or from Amazon here - amzn.to/3xwkRVx
Diy Battery Heater-----
W1209 Relay - amzn.to/3xqLATq
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Battery Chargers
Victron IP22 30A Smart Charger - amzn.to/4ce8U66
As an amazon Affiliate I will earn commissions from sales made using my links at no extra cost to you and all links are affiliated with vendors.

[@huntertate5607]

Love uour little series on these renogy batteries. I just ordered one...based on your reviews i think it will serve me just fine. Looking forward to seeing more from your channel

[@adamator98]

Maybe a secondary bms and shunt/monitor be a good back up and give some piece of mind?

[@ysesq]

got the 200 for my boat.

[@Tomlinsky]

On the battery that refuses to kick in, I would be tempted to leave it near a dry heat source for a few hours. I live in a camper and had a house battery, that I thought had died, which is intentionally based near a diesel heater (not the outlet, toasty but plenty of ambient) to stop them freezing. Sure enough, after the one time a 'non-charger' surfaced the next time I used my heater some months later it kicked in. That was 18 months ago.

[@peterj5751]

I hope Renogy gives you feedback ones they’ve worked it out. It really isn’t good enough for the BMS not recovering from a cut off. It means one mistake leaving something drawing and the battery is dead.

[@johnshaw359]

It seems like this particular BMS is allowing too much discharge, then you have to wait for the cells to recover. The hysteresis gap seems too much. Some BMS have a 'pre' charge stage/state when the cells are severely under-volt if left to go completely flat or, e.g. the lipo powered device is left unused for an extended period, can take a long while to bring them back to a 'chargeable voltage'. Just my tuppence.

[@james1466]

Did the first one recover as well or just this one