Link to the diagrams: https://cleversolarpower.com/free-diagrams/ Link to my bestselling book on Amazon: https://cleversolarpower.com/off-grid-solar-power-simplified MRBF terminal block: https://amzn.to/4bVvbpy MRBF fuses: https://amzn.to/3wz76EI In this video, I will show you the ins and outs of how to charge batteries in parallel, mainly focusing on charging lithium batteries and LiFePO4 batteries in parallel. I'll dive deep into what you need to consider if you're dealing with different capacity batteries in parallel, ensuring you understand the critical aspects of wiring batteries in parallel to maintain balance and extend their lifespan. Wiring batteries in parallel is more than just connecting cables; it's about understanding the chemistry behind your batteries, whether lithium or lead-acid, and ensuring they're matched for optimal performance. I'll explain why it's crucial to use batteries of the same voltage and chemistry and what happens when you mix different types or capacities. Charging lithium batteries in parallel comes with its considerations, especially when ensuring each battery shares the load equally to prevent premature aging called current sharing. I'll show you how connecting batteries in parallel differs from a series connection, including how batteries in parallel balance themselves automatically, a feature not shared when wiring in series. The video also covers the importance of current sharing among batteries wired in parallel, demonstrating with practical examples how to achieve optimal wiring configurations for both small and larger battery setups. You'll learn why busbars may become your best friend for minimizing resistance and ensuring even current distribution across all batteries. For those curious about wiring different capacity batteries in parallel, I'll address the common concerns and scenarios where it might be necessary, providing clear examples to help you understand the potential impacts on performance and lifespan. Selecting the right fuse and wire sizes is critical when wiring batteries in parallel, and I'll guide you through the calculations to ensure safety and efficiency. Whether you're expanding an existing solar system or building a new one, understanding the role of fuses and the correct gauge of wiring is essential for protecting your investment. Whether you're a seasoned solar power enthusiast or new to the concept of charging LiFePO4 batteries in parallel, this video is packed with valuable insights. I'll share tips on expanding your solar system by maximizing capacity without increasing voltage, ensuring your batteries deliver power more efficiently and last longer.