DIY 18650 20S 74V 84V 20A/100A 17S BMS Power wall Solder-free design/multi-layer stacking/self-insurance 74V 18650 Battery Packs Box Layer Build Power Bank DIY Battery Holder Storage For UPS Ebike DIY Uninterruptible power supply/desktop power supply  

20S18650 Welding free design. 20*4.2V 84V Maximum support for 100A discharge. Battery ready to install and use. Matching lithium battery BMS balance board. High temperature resistant battery box. Equipped with fuse protection. Double sided battery. Multiple current BMS options available. lnitial design. The biggest benefit of this product is no soldering, assembly to use cormpletely without any solder, directlyloaded with batteries can be used directly output. This battery and by 20 batteries in series, these 20batteries are on both sides of the circuit board, so thatyou can reduce the volume, effective use of the area ofthe circuit board, improve cost-effective, reduce costs. Take each battery 3000 mAh as an exarmple, a circuitboard full of batteries is 74 volts 3ah, 2p is 74v6ah, 4p is 74v12ah, you can according to your actual needto arbitrarily stack the number of battery boxes. The protection boards all have the functions ofcharging and discharging protection, discharging currentpr