¿ªÔÆÌåÓýI¡¯m also in the market for a new battery. ?I have a couple of sealed lead acid (SLA) batteries that I¡¯ve had for ages. ? Recently I bought one of Michael Herman¡¯s fantastic power supply / voltage booster units. ?One of the great things about them is that they have readouts showing both the output voltage and amperage. ?The booster is set to deliver ~17V. ?I found that neither of my batteries were unable to maintain 17V while running. ?One was dropping down to ~12 volts when supplying around 0.5 amps. ?Given how old they are, I¡¯m not too surprised. I am looking at LiFePo4 for environmental and safety reasons. ?My power requirements are somewhat minimal since I don¡¯t do imaging. ?I just need something to power the mount in the field and also have power to recharge my phone, iPad, and SkyFi while camping for several days. There seem to be two routes you can take. 1. You can buy a standalone LiFePo4 battery and either use it as is or put it in a battery box with various output connections. ?I¡¯m looking at a Bioenno 30Ah battery and box from Powerwerx (). 2. You can buy a commercial Portable Power Station such as?. ? I¡¯m curious how the 30 Ah Bioenno batteries stack up against the (many) 300Wh?power stations you can find on Amazon. ? ?? The one linked to above is advertised as 299 Wh. ?I assume the Bienno is around 360 Wh (30Ah * 12V) so on the surface they appear to be in the same ballpark. ? But there must be some slight-of-hand with these power stations. ?Option #1 above is around $400 with battery, box and charger. ?The 300Wh power stations are around $300. ?I don¡¯t see how they are offering around the same power for a significantly lower price. ?The power stations offer an AC inverter, various USB ports, voltage gauge, etc. ?They must be cutting corners on the battery or something. ? Does anyone know how can you realistically compare the Bioenno batteries to those in the power stations? --? Bill Tschumy Otherwise -- Longmont, CO |