Current draw on battery, possibly glowshift gauges?

[talnlnky]

There's more to checking if an alt or battery is good then just checking the voltage. The amperage is also important. if your alt can charge at 14v but only puts out 20amps at 3000 rpms, then something is horribly wrong.

its much harder to check amperage however as you need an ammeter/amp clamp which are spendy.

[goku87]

Originally Posted by talnlnky

There's more to checking if an alt or battery is good then just checking the voltage. The amperage is also important. if your alt can charge at 14v but only puts out 20amps at 3000 rpms, then something is horribly wrong.

its much harder to check amperage however as you need an ammeter/amp clamp which are spendy.

Lucky for me I work on electronics, and an ammeter I have. I'll check that next. About how many amps should I be looking for?

[talnlnky]

Originally Posted by goku87

Lucky for me I work on electronics, and an ammeter I have. I'll check that next. About how many amps should I be looking for?

I have no clue what a fully charged battery should be dumping for current.... your Alternator should dump something like 60-80amps in the range of 2000-3000rpms. At idle it'll be much lower, maybe as low as 15amps.


Alts usually max out in the 2-3k range.