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Gee
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01.03.2009, 09:44 PM

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Originally Posted by azjc View Post
it will only have an output of 50 watts, as long as your 4s pack isnt any bigger than 2500 mah you"ll be ok....it does have a builtin PS
I don't get this part. It says it can go up to 6amps. So you could charge a 4s 6000mah at 1c right?

Don't understand the 4s - 50 watts - 2500mah connection. Could you help me understand the connection?
   
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azjc
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01.03.2009, 09:58 PM

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I don't get this part. It says it can go up to 6amps. So you could charge a 4s 6000mah at 1c right?

Don't understand the 4s - 50 watts - 2500mah connection. Could you help me understand the connection?
you would need to get the 80% of the chargers PSs output ( for effiency) and get 40 watts and divide that by 14.8 and you would get get 2.7 this would be the max amperage you would get from the charger. In order to charge a 6s 4000 pack you would need about 100 watts, to charge one of my 6s 5000 packs it takes about 130 watts from the PS

Last edited by azjc; 01.03.2009 at 10:01 PM.
   
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Gee
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01.03.2009, 11:27 PM

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Originally Posted by azjc View Post
you would need to get the 80% of the chargers PSs output ( for effiency) and get 40 watts and divide that by 14.8 and you would get get 2.7 this would be the max amperage you would get from the charger. In order to charge a 6s 4000 pack you would need about 100 watts, to charge one of my 6s 5000 packs it takes about 130 watts from the PS
Now I see how the ps watts play into the big picture. Thanks.


I've been using the MRC989 since I went lipos. It's a nice charger for lipos and nihms. It doesn't have a built in balancer is the only thing that it could use to make it better. It does come with a ps for it at about the same price as what you were looking at. I've never used any other charger for lipos so can't comment on them.

Here's Brian's data table of some of the popular chargers.

http://scriptasylum.com/rc_speed/_data.html

I didn't see this one that Brain added to his page. This is a nice feature for helping select a charger.

http://scriptasylum.com/rc_speed/_charger.html


Nice job BrianG.

Last edited by Gee; 01.03.2009 at 11:47 PM.
   
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RCShocker
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01.06.2009, 07:13 PM

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I've been using the MRC989 since I went lipos. It's a nice charger for lipos and nihms. It doesn't have a built in balancer is the only thing that it could use to make it better.

I have a r/c buddy/friend locally, actually 2 guys, who use the 989 and charge Lipo's with it. I have had GREAT luck and really like all the MRC chargers. I've had 2 959's and I presently use a 977 Pro. But the 977 isnt Lipo friendly. And I gotta run a lipo in my crawler.

I swore I'd get a 989 next but I guess I have a bug up my butt for a Hyperion. Guess, I better get a couple of Lipo's now, huh?

I found a deal on a used 606i so I guess I will have a go at the Hyperion in a few days no doubt.

I have my 977 Pro charger on ebay but I think I'm gonna pull it. I would be going from a dual charger to a single charger. And that didnt seem like the best idea for now.
   
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