Alternative to an expensive 3 stage charger

Submitted: Sunday, Feb 20, 2005 at 20:33
ThreadID: 20618 Views:11256 Replies:12 FollowUps:26
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About a month ago I bought a Projecta "Chargecontroller BM 140" from Bursonsfor $50. This unit goes between the battery charger and the battery and converts your standard battery charger into a two stage charger. Effectively, it lets your charger charge the battery until it is full and then switches to "float" mode. Also has a switch for using Gel or Wet Cell batteries.

My AGM battery will only get to 12.65 volts (after standing for at least 24 hours to get a realistic reading) when charged fron the alternator. With the Projecta gizmo attached and left for four days, after it went into float mode after the first four hours, and then being disconnected and being left to sit for three days, the batt is still showing 12.91 volts.

For a cost effective way to get a battery fully charged I reckon this is a good bit of kit. Gets the batt fully charged without overcharging it.

Jim.
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