Durst 25 amp 3 stage charger

Hi Greg

It is 3 stage.

Also take note that the Jaycar unit is not 4 stage.

Regards

Derek.

You're probably reading my rather confused post.

The EPS 1214 states a "2 stage charging cycle".

I thought the Durst looked similar in the specs having the boost and then float, but reading the rest of the info it has three stages: Bulk, Absorption and Float.

I have read in archived posts something about not all so called Smart Chargers not really being true three stage chargers but that probably didn't apply to ones like the Durst.

If you got yours in 2004 and your batteries are still all good then I guess it's been doing a good job.

It looks like not everyone was happy with what was said in
Post: 44959 ":)

The best thing to do when purchasing a product is to do your own research, not listen to biast opinions and choose wisely upon your requirements.

If the charger has three stages of operation in it's functionality then there advertising is justified.

Hi Greg

There is confusion in the terms and no universally accepted definition and marketing has run with it.
Thats the main problem - and then the term smart charger is added to makes things harder.

In other circles you see better definitions based on use of terms like IUI or IUOI
these are more internationly accepted.

Perhaps we could have a thread that better defines this in say an exploroz context.

Most of non basic chargers are 3 stage.

The stages are

1/ constant current initially (voltage rising )

2/ Constant voltage (main charge )

3/ Step down to a holding voltage.

There are further variations to the above -

The term smart or perhaps in your case "true" 3 stage tends to apply
when the charger senses in the first or other stages that there has been a drop in current and changes its voltage
(in some units initial voltage for constant current is lower)

Really smart units have overiding time switches and temperature measurement elements.

Note - Before we get into a definition war - the above is not a full definition - just a simplistic overview to give the idea

If Derek or someone could point us to the full Durst document then we could see more clearly the stages it uses.

Robin Miller