as in one which records actual AH [ Amp Hours ]
not an ammeter/ampmeter, an amphour meter.
its quite tricky to search for specifically and few results come up, but generally they are for mains and such.
i really need one of these however, i have multiple tests i want to perform which require this information.
I would imagine i could do it with an osciloscope, maybe, but im not up for buying one quite just yet even if it only costs $400-500 for the one im after.
if there are no cheap chinese standalone models is there some cheap circuit i can hook up to my computer via usb or VGA input (i have a laptop) or if really need be, my old packard bell pc which DOES have parallel , or to my raspberry pi or my 3d printers printrboard, whatever is most convenient/cheap, so that i can use my computer to monitor amp hours and/or watthours?
the two immediate tasks i have are to do a lifespan test on some small sample strips of overloaded MMO mesh, electrolysing a "gentle" solution, to establish a graph indicating the runaway point at which what power causes the coating to corrode unnaturally fast (its platinum substitute plat group metal oxide).
the other is in buying a cheap usb 20Ah power bank, my old one died but im not sure it truely was 20ah, so i want to test it for sure, and if it turns out its not, if its not even 10Ah, ill demand a refund and end up with a free <10Ah powerbank and ebay sellers will stop selling the fake powerbanks.
So, whats my best option or is there a relatively affordable product out there?
my voltage range and amperage range is going to be <20v and <15A
not an ammeter/ampmeter, an amphour meter.
its quite tricky to search for specifically and few results come up, but generally they are for mains and such.
i really need one of these however, i have multiple tests i want to perform which require this information.
I would imagine i could do it with an osciloscope, maybe, but im not up for buying one quite just yet even if it only costs $400-500 for the one im after.
if there are no cheap chinese standalone models is there some cheap circuit i can hook up to my computer via usb or VGA input (i have a laptop) or if really need be, my old packard bell pc which DOES have parallel , or to my raspberry pi or my 3d printers printrboard, whatever is most convenient/cheap, so that i can use my computer to monitor amp hours and/or watthours?
the two immediate tasks i have are to do a lifespan test on some small sample strips of overloaded MMO mesh, electrolysing a "gentle" solution, to establish a graph indicating the runaway point at which what power causes the coating to corrode unnaturally fast (its platinum substitute plat group metal oxide).
the other is in buying a cheap usb 20Ah power bank, my old one died but im not sure it truely was 20ah, so i want to test it for sure, and if it turns out its not, if its not even 10Ah, ill demand a refund and end up with a free <10Ah powerbank and ebay sellers will stop selling the fake powerbanks.
So, whats my best option or is there a relatively affordable product out there?
my voltage range and amperage range is going to be <20v and <15A