Calculating LiFePo4 Short Circuit Current

Why all the secrecy Around Short Circuit Current? This article has been on my to-do list since 2016. I had started it but, never finished. In 2016 IR meters started at $500.00 and went up from there. Today the very affordable Fnirsi HRM-10 or the Yaorea 1035+ represent an amazing value! I paid North of $400.00 in 2016 for my Yore 1035+ IR meter direct from China. Today, both of these meters are sub $80.00 One of the most overlooked specifications in the marine lithium battery market is short circuit current (SCC). Everyone wants to talk about Bluetooth apps, low-temperature charging, heated batts, Victron integration, and whether the battery case is made from a recycled unicorn horns. (grin) Yet almost nobody asks the far more important question: “How much fault current can this battery actually deliver?” If you are selecting fuses, determining AIC ratings, designing battery switches, or attempting to comply with ABYC standards, SCC is not an optional number. It is one of the most…