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Just sharing this fuse option for those with smaller systems considering MRBF or ANL: Littelfuse MIDI High Performance 70V (Available at waytekwire, mouser, digikey and other places for about $4). It has 2,500 AIC @ 70V (Spec sheet doesn't list lower voltages, but if it functions like all the...

First off, I'm off grid, so I don't have the ability to easily charge batteries besides through solar and doing a full discharge is risky because it leaves me without power if I get the weather predictions wrong. I bought 8 LF105s from ezealco (here), hooked them up to a JK BMS, set...

I'm looking at this battery by RoyPow: https://www.18650batterystore.com/products/roypow-24v-80ah-lithium-battery-s2480-a-heated-ip67 https://www.amazon.com/Lithium-Rechargeable-Scrubber-Trolling-Electric/dp/B09SYZCYDS Strangely full of higher end features for the price (and priced much lower...

I'm a bit confused why there's a universal recommendation for an LVD in a LFP bank with a BMS. The only argument I hear repeated over and over is in the form of a truism: "your BMS *should* be the last resort for protection." But, what exactly is the technical reason for this? As far as I can...

A bit confused. I keep reading a generality that MRBF fuses have higher current interrupting capacity than ANL (usually from posts asking about class T alternatives), but I keep finding the opposite in spec sheets. Apples to apples: BlueSea MRBF 5000A @ 32V vs BlueSea ANL 6000A @ 32V. Spec...

I'm going to be wiring some new Hyundai 305W panels (9.86 Isc) in 2S2P. I believe the fusing/wire is rated by Imax which is calculated by Isc * 1.56, so that's 15.3 per series string/panel. These appear to have 12AWG. The spec sheet says maximum reverse current 20A. Since two strings...

I'm in the process of ordering a replacement LFP battery, but am still trying understand what is on with my FLA bank (4x 6v GC-2 215ah) which I've had for about 6 years. While I've always had voltage drop issues on my battery bank (for about the past year it has often been dropping to by 1V or...

I'm redesigning my system and switching to LFP. I need a 24V 50ah or possibly 100ah (depending on price-value ratio). It seems that the market provides better prices and better features on average if I do 2x12Vs than if I try to get a single 24V. Plus, I'd have a bit of resilience in the event...