My fully charged sla battery gives about 3 amps at about 5.5 volts. Does that mean that it is "3000mAh or 3Ah"? Does this apply to other batteries? Need it for making a rechargeable breadboard and arduino dock. Thanx in Advance :)...
3A for how long? That is where the H comes in.
Could be 3A but only last for 10 minutes.
Or, 1A for 3 hours, then it could be 3AH, or 3000mAH.
Or, 3A but only for 1 hour.