battery fighter (charger)

Submitted: Sunday, Jun 15, 2008 at 16:55
ThreadID: 58810 Views:2829 Replies:2 FollowUps:3
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http://www.dse.com.au/cgi-bin/dse.storefront/485461e20660f23e2740c0a87f9c06cb/Product/View/M9825

picked up one of these today thanks to somebody's recommendation on an earlier thread. $19.

two questions:

1) am I right in thinking it would take 4 hours to put 3 amps into my battery?

2) what is the advantage of one of these over the conventional bulk/trickle charger?

I know it does make a reference to this in the link but only goes as far to say that it would save in the long run - but not how. I think they are referring to 2 stage chargers, whereas this is a three stager?
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Reply By: Member - Olcoolone (S.A) - Sunday, Jun 15, 2008 at 17:37

Sunday, Jun 15, 2008 at 17:37
These chargers are designed for small batterys like the ones used in alarms and other 12 volt small current draw applications.

More suited for 12 volt batterys up to 20 amps.

They will keep a car battery charged if the vehicle has not be used for a while.

There are a true 3 stage.

You would be better off buying a Ctek 7 or 15 amps charger.

We use a Ctek 25 amp for the camper trailer, can be used as a charger and when the battery is full it will float, also it can be used as a25 amp power supply.

The down side to the charger you just got is if the battery is down it will be working very hard to charge the battery up,you might find it has a timer built in to to stop charging to bigger batterys.

We also have a Redarc 5 amp battery charge for charging car batterys and that will turn itself off after about 12 hours of charging.

AnswerID: 310131

Follow Up By: Steve - Sunday, Jun 15, 2008 at 18:37

Sunday, Jun 15, 2008 at 18:37
aaaaaaah so.....it'll maintain a 100% charge but not much more?

but if I have my battery charged up 100% and then go off to Whoopwhoop.....stop o/night with Waeco running o/night.....drive off next day with alternator re-charging to roughly 80% charge, when I get to 240v power supply, I take it this thing will gradually (slowly??) bring my batts back up 100%??? if it needs to bring a 100a/h battery back up from 80% to 100% it'd take a week or thereabouts?
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FollowupID: 576188

Reply By: Mike Harding - Sunday, Jun 15, 2008 at 18:50

Sunday, Jun 15, 2008 at 18:50
>1) am I right in thinking it would take 4 hours to put 3 amps into my battery?

Yes.

What you have bought is really a maintenance charger for a battery which is already close to full charge and will be left sitting for a period of time - the charger has little other use. For $20 it's a good buy.

Mike Harding
AnswerID: 310154

Follow Up By: Steve - Sunday, Jun 15, 2008 at 18:57

Sunday, Jun 15, 2008 at 18:57
cheers Mike

that'll do a good job


all I need now is a decent charger - my old one died a couple of weeks back
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FollowupID: 576191

Follow Up By: Mike Harding - Sunday, Jun 15, 2008 at 19:14

Sunday, Jun 15, 2008 at 19:14
Jaycar do a good 3 stage 15A one for about $150, I think - I'm sure someone will be able to provide a model number?

Mike Harding
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FollowupID: 576198

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