New iCharger 308Duo

[mrob73]

I really like mine so far. The UI is a little wacky and I am still trying to learn it. The manual isn't very helpful. Aside from those two things it is a really nice charger, loaded with features. Most of which I haven't figured out yet.

[flycrazy]

Has anyone here used TDK Lambda HWS 1500 PSU's in parallel? I have two of these units and I'm trying to get some feedback from anyone who has used them in parallel.

Thank you!

[flycrazy]

Has anyone here been able to find a source for the control circuit female external plug that goes into the CN01/CN02 receptacle on the HWS 1500 PSU's that some of us are using ?

Thank you.

[prototype3a]

I believe I saw that someone found these but they were stupidly expensive.

[Bladecpnitro]

Originally Posted by flycrazy

Has anyone here been able to find a source for the control circuit female external plug that goes into the CN01/CN02 receptacle on the HWS 1500 PSU's that some of us are using ?

Thank you.

Here is a little info from a guy who used them but not very detailed.
You might shoot him a message if you post on rcgroups
http://www.rcgroups.com/forums/showthread.php?t=2023198

[liam-b]

Going to buy the 308 or 406 but abit unsure on the 308 specs would I be able to get the full 30 amps on port one when charging 6 x6s packs at 5 ano and then still be able to use the port 2 kde other packs ?

[RedOctobyr]

With enough power supply watts (obviously), you can output up to about 52A total on 6S, given the 1300W limit, assuming the worst-case 25.2V pack voltage.

So you can do 30A 6S on one channel, and up to 22A 6S on the other channel. Or even higher amps (30A) on the second channel, if those packs were, say, 3S (keeping you under 1300W).

Sent using Tapatalk.

[TheBum]

I just ordered one of these and I have one question about the independent charging mode. Does the charger try to alternate charging current between the channels in a smart way to get the maximum charging power on both channels? In other words, when one channel rests for voltage and IR measurements, does the other channel ramp up as high as the full 800W, and vice versa? Or, does the charger pump a maximum of 650W into each channel?

[prototype3a]

I don't think it pauses either side ever like a Hyperion. It does manage the output power of the two channels intelligently though if you limit the output in the software. IE, if you had it limited to 800w total and have two 600w charge cycles going, when one ramps down, the other will ramp up.

[RedOctobyr]

+1. If it pauses, it must be very brief. I've never seen it on the screen, or heard my generator change sound.

You can have it split power evenly across the two channels, or set one to get full power, and the other will get what's left.

[TheBum]

Thanks. Now, a question about synchronous mode: To which balance port do you connect the pack? The manual neglects to mention it.

[RedOctobyr]

For sync mode, you need special cables that join the main and balance outputs from both channels together. So the pack still plugs in the same way.

[TheBum]

Originally Posted by RedOctobyr

For sync mode, you need special cables that join the main and balance outputs from both channels together. So the pack still plugs in the same way.

The manual mentions the connection for main, just not for balance. Ah Clem had some cables at the HF FF with a banana plug on one end and a pass-through banana plug/jack on the other end for synchronous charging. I don't recall what he used for the balance connection.

[RedOctobyr]

This is what I bought, for the balance cable:
http://www.progressiverc.com/paralle...cable-980.html

I think either the charger came with some cables I used to build something for joining the main outputs, or I just made it from scratch. That one was easy, that's just 4mm bullet connectors.

But I didn't feel like trying to make something for the balance cable.

[TheBum]

I'll probably run a jumper cable across my parallel charging boards for balancing, assuming the polyfuses don't trip. I'll need a joiner cable for the mains so I don't exceed the 40A limit of the main fuses.

[Tobias Mason]

anyone have a clue how to make the 308 duo start dischargeing at 30 amp and not have to wait for it to ramp up?

[RedOctobyr]

I don't think it can be changed, or I've never seen a setting mention it.

This is just for discharge? If for regenerative into external resistors, it may be to let bulbs be brought online gradually, so their resistance can change more slowly, letting the charger adjust.

If for charging, I think the ramp up is to let generators adjust as the load increases gradually.

If for internal discharging, I don't know what the reasoning would be

Only for curiosity, why do you want to skip the ramp-up? Just time savings? I've never timed them, but the ramp ups for charging don't bother me, they don't seem to take long, in my book. And they are easy on generators, which is good. Some chargers (Hyperion?) used to just jump straight to the charge current, which could stall generators or give them trouble.

Sent using Tapatalk.

[Skidpad]

Hmm, it's only capable of an 80w discharge, so I'm assuming you are doing a regen discharge. If so, how long does it take to ramp up? I've never used mine in this fashion yet.

[Relisys190]

Holy crap i'm addicted...

I blew up one of my old junk 50watt chargers today. I have one more 50 watt left and a Protek 100x2 AC/DC charger that I just purchased, which isn't all that great...

Somehow I wen't from looking for a 12v 5amp power supply to replaced my damaged unit to looking at a whole new charging setup!!! LOL


Im ready to hit the buy now button on a 308duo. I'm gonna pair it with a 500watt power supply to start.
Anything I should know before taking the plunge into the high power charging world? I won't be doing Parallel YET... So don't worry I won't burn my house down.




<--- Addict.

[Relisys190]

Question:

on my current 100watt x 2 charger I can charge my 3300 6S packs at a max of 4.5amps per channel. 4.5a maxes out the chargers capabilities.

I would LOVE to charge my 6S 3300's at least 2C (6.6amps), so am I correct in assuming a 500Watt power supply should be sufficient to do this with the 308?

Thank you.