Slow draining of Battery (1 Viewer)

[Jonathan_Ferguson]

Is there something that is a common cause, in this vintage of Hilux/4Runner?

I bought a Bosch BNS70 from Super Cheap Auto, becouse that is what was listed for a 4Runner LN61. Which is correct anyway http://apps.bosch.com.au/products/saa/batteries.pdf

The only Eletrical change I've made, was an Install of a CB Radio. Which gets its Positive from the Alternator, and the Negative is connected to the same Earth as the Alarm System.

 

[KLF]

Put an ammeter between the ground lead and the neg term on the battery, measuer the current draw with the engine off. Should be no more than about 10 mA to keep the clock and the memory presets on the stereo going. If it's more than that, start yanking fuses out until it drops off, at least you'll know what circuit it's on.