Nerd Ralph loves cheap and dirty hacks, and for that we applaud him. His latest endeavor is a LiFePO4 battery charger that he made out of parts he had on hand for under $0.50 US. (Although we ...

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Ecoflow River 2 Max 499Wh LiFePO4 Power Station $204 The Ecoflow River 2 Max sits right in between the River 2 and the River 2 Pro in terms of battery capacity, power output, weight, and price.