Hello World;
I recently got a hold of a small Lead Acid battery that I extracted from one of those portable jump-start kits for cars. 12V/10Ah.
I've noticed that whenever I meter the voltage, the reading starts relatively low (8-10.5V depending on charge level), but then slowly ticks upward over the course of a minute or two, sometimes as much as 2 or 3 volts higher than the initial reading.
Can anyone explain what's happening there? Furthermore: Which reading should I accept? High, Low, or Average of both?
Thanks.
I recently got a hold of a small Lead Acid battery that I extracted from one of those portable jump-start kits for cars. 12V/10Ah.
I've noticed that whenever I meter the voltage, the reading starts relatively low (8-10.5V depending on charge level), but then slowly ticks upward over the course of a minute or two, sometimes as much as 2 or 3 volts higher than the initial reading.
Can anyone explain what's happening there? Furthermore: Which reading should I accept? High, Low, or Average of both?
Thanks.