🔋 The cheapest 6kWh LiFePO4 battery based on 2.95 kWh BMZ modules. THLB
VM PowerTech
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🔋 The cheapest 6kWh LiFePO4 battery based on 2.95 kWh BMZ modules. THLB
796 просмотров · 11 дн. назад
VM PowerTech
83 подписчика
796 просмотров · 11 дн. назад
In this video, I repurpose BMZ LiFePO4 battery modules into a complete, ready-to-use backup power battery.
I disassemble the modules and show the cells used to build them. I explain why I decided against using the original BMS board. I install and connect a new Daly Smart BMS board featuring an active balancer. I combine two modules into a single 48V 6kWh battery pack. I test the battery under load (100–120A) and check for heat buildup using a thermal imager. I measure the actual capacity and calculate the total cost of the build and the time required for the conversion.
🛡 Daly BMS with an active balancer https://t.ly/Dly
📟 Daly LCD https://t.ly/baD
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🛡🔋 Battery protection boards (BMS) for Lifepo4, Li-ion, LTO 🛡🔋
JK (Jikong) BMS inverter https://t.ly/JKN
JK (Jikong) BMS https://t.ly/JKB
Daly BMS https://t.ly/Dly
Daly balancers and LCD https://t.ly/baD
⚡ Chargers ⚡
Charger 12-200v, 600-1500W (I, U regulation) https://t.ly/cg4
Charger 12V 6A https://t.ly/Cg1
Charger 12V up to 100A https://t.ly/cg2
Charger 24V https://t.ly/cg3
Charger 1.2-3.7V https://t.ly/cg5
📟 Measuring and testing devices 📟
Fnirsi 2C53T oscilloscope https://t.ly/fn1
DMC-100 clamp-multimeter https://t.ly/fn3
HT208D clamp-multimeter https://t.ly/htd
Electronic load DL24 https://t.ly/DL2
⚙ Peripherals ⚙
Wattmeter for 220V socket https://t.ly/Wtm
Wattmeter on Din-rail https://t.ly/DIN
Bolt terminals https://t.ly/lug
Silicone wires 1-26AWG https://t.ly/Syl
Pressed power wires 0-8AWG https://t.ly/Dri
Anderson power connector https://t.ly/ande
Manual 3-position switch https://t.ly/MTS
Gas. generator carburetor https://t.ly/GAZ
Wi-Fi automatic switch with wattmeter https://t.ly/Wif
🛠️ Tools and auxiliary equipment 🛠️
Laboratory power supply https://t.ly/lbp
Spot welding https://s.click.aliexpress.com/e/_c3u...
AD209 digital microscope https://t.ly/ANd
Lifepo4 batteries of good quality
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🛡⚡ DC protection and switching 🛡⚡
Solar panel protection shield https://t.ly/dcpv
Tomzn 2P MC 100-250A circuit breaker https://t.ly/DCA
Tomzn 1/2P 100-250A circuit breaker https://t.ly/DCF
Tomzn 2P Din 80-125A circuit breaker https://t.ly/DCB
Tomzn 2P Din 3-63A circuit breaker https://t.ly/DCC
Fuse 30-500A+MEGA housing https://t.ly/DCE
Support the channel https://t.ly/don
00:00 - Introduction & BMZ 2.9 kWh Module Overview
00:52 - Factory Communication & Master Controller Logic
01:40 - Upgrade Options: Custom Module vs. Replacing BMS
02:22 - Project Plan & Potential Uses for THLB Cells
03:14 - Original BMS Features & Limitations
04:35 - Disassembly & Factory BMS Inspection
06:58 - Cell Configuration & Internal Layout (THLB 26650)
08:05 - Cell Specifications & Cycle Life
09:07 - Internal Resistance & Voltage Measurements
10:17 - Testing Original Passive Balancer
10:57 - Installing Daly BMS & Balancing Wires
12:08 - Assembling Two Modules in Parallel (5.8+ kWh)
13:19 - Power Button, Screen & Resistance After BMS
14:35 - Inverter Charging Test & Thermal Imager Readings
15:32 - High Current Discharge Test (100A–120A Load)
16:46 - Capacity Test Results (ZKETECH)
17:25 - Finished Build Overview, Costs & Conclusion