Hello all I have installed two 100 watt panels with a 30 amp controller. The panels are 10 amp. My question is this: how much load can the factory installed cables handle? It seems that if I increase the amount of panels and upsize the controller at some point the cables will become the weakest link? I have read that people have pulled new cables for their systems using the factory ones as the fish, is this really necessary?
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Originally posted by Stevocanada View PostHello all I have installed two 100 watt panels with a 30 amp controller. The panels are 10 amp. My question is this: how much load can the factory installed cables handle? It seems that if I increase the amount of panels and upsize the controller at some point the cables will become the weakest link? I have read that people have pulled new cables for their systems using the factory ones as the fish, is this really necessary?
I prefer to use this chart for calculating acceptable current and voltage drops.
Jim and Ginnie
2024 Solitude 310GK - 2020 F350 Dually
GDRV Technical Forum Moderator
GDRV Rally Support Coordinator
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I just ordered 2 additional panels for 1200 watts total - currently have 800 watts (2 series 200 watt panels in 2 parallel banks - will add the new panels in series - 3 series 200 watt panels in 2 parallel banks. Still safely using the existing 10AWG wiring and MC4 connectors from the roof. Running a 150/85 charge controller.2021 Solitude S-2930 RL
1200 watts solar, 3KW inverter, 400 A/Hr LiFePO4 batteries
2020 Ford F-350 CC LB Crew Cab SRW 6.7L 4x4 3.55
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