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I've purchased a no name power station to power my rig, which includes both an ASIAir Plus and a SkyWatcher EQ6R-pro mount, both of which require 12 volts. I noticed on the weekend that as time went on, the voltage as reported by the ASIAir dropped from an initial 12 volts to less than 11, at which point the ASIAir started giving undervoltage warnings and the power light on the mount started blinking. I then bought a more expensive power station thinking the other one was of poor quality, only to discover its voltage dropped even faster!
So my question is, is this common with lithium power stations, and is there a way, or brand, or type of power station that will retain its voltage over the course of a night?
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