Building a 25kWh Powerwall for Off-Grid usage - EP5

Now that Block 1 has been parallel and serial top balanced in the last episode, it is time to put the NEEY active balancer on Block 2 and see how the Lishen cells will perform compared to the EVE cells on the serial top balance and how much cell drift is going to happen while charging. So let's prep the busbars again and put some wire lugs onto the balancer harness and get this going. If we have time left we may have another look at the DIYBMS.

Hardware in this Episode

• 16x EVE 280Ah LiFePO4 Cells - NKON
• 16x Lishen 280Ah LiFePO4 Cells
• Riden 6018W DC/DC Converter
• NEEY EK-24S4EB Active Balancer 4A (4th Generation) - AliExpress - APP + Docs: https://github.com/NEEY-electronic/NEEY-electronic
• IKococater DC Adjustable Power Supply 0-60 V / 0-5 A - Amazon DE
• GIGAVAC MX23 Contactor

Timestamps

00:00:00 - Intro 00:07:30 - Busbar Preparation 01:06:38 - Wire Harness Preparation 02:33:22 - Balancer Installation on Block 2 03:03:58 - Balancer Configuration 03:07:39 - Start Serial Top Balance on Block 2

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