How this active balancer (almost) killed my battery. We knew it, but here is the proof!

Video Description

The QSO battery is dead! No BMS, no voltage, no life!!! Something has happened to this battery while it was just sitting there, not even being connected to anything. Well... it was connected to something: the active balancer inside the battery box! Connected but not activated was apparently enough to deep discharge this battery down to 2.8V! Yeah, that's right, not 2.8V cell voltage but pack voltage? Can we still revive this battery and is it still OK to use it? T-class fuse and other suitable safety devices to protect your system: https://off-grid-garage.com/battery-accessories/ The QSO Battery Active Balancer Upgrade. And how a tiny switch makes a simple task impossible! https://youtu.be/ZplbAAqnrjo QSO 230Ah Battery Capacity and Energy Test. Can the Chinese deliver? 🔋🪫 https://youtu.be/cPGMNfmNcP0 Please subscribe and join me on my journey of the Off-Grid Garage! For more information, please check out my website with links to all the batteries, materials, devices and products I have used in my videos: https://off-grid-garage.com Your great support is much appreciated! Thank you very much. Buy me a Beer🍻: https://off-grid-garage.com or a coffee: https://www.buymeacoffee.com/jqtgwc3mp3 You can also click on the Thanks button under the video to support the channel. Become a Channel Member (and receive additional content from time to time): https://www.youtube.com/channel/UCSv0QdWrddSghKQ9gXDT7pQ/join 👇👇👇 These are the batteries you are looking for 👇👇👇 🔋➡NEW EVE MB30/MB31 with 306Ah/314Ah: https://off-grid-garage.com/batteries/ 🌞➡Solar charge Controllers, Inverters and accessories: https://off-grid-garage.com/solar-charge-controller/ 🔧➡Tools, Analysers and Testers: https://off-grid-garage.com/equipment/ 📈➡ Battery Tests and Results: https://off-grid-garage.com/battery-data/ 🔌➡Batteries, charger and accessories: https://off-grid-garage.com/batteries-3/ ⚡➡Cables, Inverters and Electronics: https://off-grid-garage.com/electronics/ T-Shirts, caps, mugs and more in our merch-shop: https://off-grid-garage.com/merch Get your Jakiper 'Jaki' Batteries from the local NSW warehouse with short delivery times. Batteries with great value and quality. Check out my website for reviews and discounts: https://off-grid-garage.com/li-ion-batteries/ or find out more directly on the Jakiper Australia website: https://aujakiperbattery.com/?ref=ogga Sponsors: @powerwall YouTube: https://www.youtube.com/@powerwall Facebook: https://www.facebook.com/groups/orientpowerbattery Tiktok: https://www.tiktok.com/@orientpowerbattery -- @offgridps Off-Grid Power Systems, your Victron Dealer in the US delivering outstanding value and service for commercial, recreational and full off-grid systems. Let them know, Andy sends you!😉 Relax, Recharge, Repeat: https://offgridps.com/ Here is my Tesla referral link, if you want to buy any Tesla accessories or even order a vehicle (get $350 off a new vehicle!). This is a great way to support my channel. Thanks a lot, to everyone who have used it so far 🙏 https://www.tesla.com/en_au/referral/stefan96963 Music for Creators: https://share.uppbeat.io/hhkbmufrd7ir My other (German) YouTube channels: https://www.youtube.com/c/OffGridGarageAustralia/channels Please don't leave any links in your reply. YouTube will not publish your comment in this case. Please do not send me any emails. I'm receiving far too many and I'm unable to read or even reply to them. Consider leaving your questions under the videos so the community can help you out.