Last weekend (2/5/2022), I disassembled my 24v, 200ah battery bank that I've had in my RV for about 1.5 years. It consisted of two, 24v, 100ah CALB battery packs (total of 16 3.2v, 100ah lifepo4 cells) with 1 BMS managing each pack (2 BMS total). The BMS were the 100amp (50charge) ANT Smart BMS with Bluetooth and low/high temp cutoff. This setup was good for about 5Kw consuming 80% (charge to 90% and discharge to 10%) of available power. I was able to get about 10-11 hours of continuous power from the bank when I had about 450-500watt load.
This week, I am incorporating the 16 CALB cells into a bank of 48, 3.2v, 100ah CALB cells. I had set out initially to build a 24v, 300ah bank. Once I tested for a year, I realized that I would need a 15Kw bank capable of supporting my fridge, heat/ac and small appliance requirements (1500watt hours average for 10-11 hours). I used an Emporia Vue monitor with cloud data and graphing/history to model my usage from the hottest (Sept) through the coldest (Feb) in FL to arrive at my estimate.
With what I learned, I purchased the 32 CALB cells (total 48) for my bank. I have a 500amp DALY 8S smart bms, 2/0 cables, connectors, ANL fuses, aluminum bar for the battery bank, external 4-way bus bars, on/off switches and other hardware.
I will be top balancing each pack of 6P cells (3.2v 600ah pack). Total of 8 packs will be in series for a max 24v, 600ah bank (15Kw). Bus roof solar will be 1500watts).
Any experience assembling a similar setup?
NOTE: Existing system/devices I am reusing:
Aims 6000watt/18000watt surge inverter/charger (can charge battery bank at 80-85DC amps)
Aims Solar Charge Controller (1700watts total input with up to 60amp charging of battery bank)
Midnight Solar combiner box containing three, 20amp breakers (6 panels will be connected in three, 2-panel pairs)
Six SanTan Solar, 250watt panels (1500watts max output) with 15amp inline fuses
I am assessing the current 2 gauge cabling between the bus bars and inverter for potential replacement with the 2/0 cables. They are short runs under 2 feet
I have 250amp bus bars. I do not anticipate needing to draw even 200 DC amps. I bought the 500amp DALY for ability to charge at 250amps across the 600Ah bank.
I have a Victron shunt/app, Emporia Vue app and the smart bms monitoring app for real-time system monitoring
This week, I am incorporating the 16 CALB cells into a bank of 48, 3.2v, 100ah CALB cells. I had set out initially to build a 24v, 300ah bank. Once I tested for a year, I realized that I would need a 15Kw bank capable of supporting my fridge, heat/ac and small appliance requirements (1500watt hours average for 10-11 hours). I used an Emporia Vue monitor with cloud data and graphing/history to model my usage from the hottest (Sept) through the coldest (Feb) in FL to arrive at my estimate.
With what I learned, I purchased the 32 CALB cells (total 48) for my bank. I have a 500amp DALY 8S smart bms, 2/0 cables, connectors, ANL fuses, aluminum bar for the battery bank, external 4-way bus bars, on/off switches and other hardware.
I will be top balancing each pack of 6P cells (3.2v 600ah pack). Total of 8 packs will be in series for a max 24v, 600ah bank (15Kw). Bus roof solar will be 1500watts).
Any experience assembling a similar setup?
NOTE: Existing system/devices I am reusing:
Aims 6000watt/18000watt surge inverter/charger (can charge battery bank at 80-85DC amps)
Aims Solar Charge Controller (1700watts total input with up to 60amp charging of battery bank)
Midnight Solar combiner box containing three, 20amp breakers (6 panels will be connected in three, 2-panel pairs)
Six SanTan Solar, 250watt panels (1500watts max output) with 15amp inline fuses
I am assessing the current 2 gauge cabling between the bus bars and inverter for potential replacement with the 2/0 cables. They are short runs under 2 feet
I have 250amp bus bars. I do not anticipate needing to draw even 200 DC amps. I bought the 500amp DALY for ability to charge at 250amps across the 600Ah bank.
I have a Victron shunt/app, Emporia Vue app and the smart bms monitoring app for real-time system monitoring
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