Ragz

I have asked this question before in the battery forum, but got no reply so here it goes again.

Can we use duralite batteries on a regular powerbox evolution? I know there is a specific duralite powerbox as well....whats the difference in these two versions? Does it something to do with li-po and li-ions? Cut off Voltage? etc....

i3dm

My Feedback: (51)

Lipos and Li-ions have the same voltages so i dont see a problem. any Lithium 7.4V could be used.

Ragz

sounds logical...but there must be some reason to have two versions of the powerbox...one has duralite written on it.

i3dm

My Feedback: (51)

www.powerbox-systems.com will answer all of your questions.

The duralite one is simply a different model from PowerBox, its not made by Duralite.

Ragz

i know its not made by duralite, but whats special about it that it specifies use of only duralite batteries on it?

i3dm

My Feedback: (51)

nothing, you could use it with any Li-ion \ Li-po.

Ragz

hmm...

seanreit

My Feedback: (60)

I agree, you can use either batteries. You can even use a 6 cell nicad if you want to.

Dave Wilshere

Ragz

The only difference is the lable...fact

Duralite is the US brand name Emmerich allows

You can use either the voltage range is large enough

Dave Wilshere

jetpilot

My Feedback: (48)

How many regulators are inside a powerbox?
Scott

c_makhija

Hi Scott,

The pb evolution has two regulators

Chaitanya.

David Gladwin

I believe the only difference between the Duralite and standard Powerbox is the calibration of the LEDs . On the Duralite Powerbox they are set up for Li-ion (Duralite) batteries. You can still use any type of battery.

This info was received from Duralite and Powerbox distributor.
Regards,

Davids Gladwin.

Ragz

Mr. Gladwin, you have answered the technical answer I was looking for. Thank you all for your time.

i3dm

My Feedback: (51)

Im not sure if this makes any sense. all current lithium packs (including Duralites) have the same voltage (7.4V and 8.4V when full) - so there shouldnt be any different calibration.

I still think its just a print on the box.. nothing else.

David Gladwin

I agree but that is what I was told . Perhaps it is the shape of the discharge curve. . Perhaps !

Regards, David Gladwin.

i3dm

My Feedback: (51)

No other RC device on the planet distinguieshes between Li-po and Li-ion 7.4V, so the PB shouldnt as well.

Its not a discharge curve matter as well, sorry. different cells have different dischage curves, even within a specific brand or make, so no way.

David Gladwin

You are right of course, a DC volt is a volt whatever the battery. However, PBs, were/are set up for Nicads/ NiMhs which do, of course, have a different voltage to lipos. I think that when Duralite started to market PBs their devices were set up with leds calibrated for lithium ions, like lipos, with a peak voltage of 8.4 whereas a 5 cell nicad will peak at around 7v. This, I am told by the Australian distributor, is the ONLY difference.

I believe the new PB is switchable between nicad-lipo so that the calibration of the LEDS is appropriate to the type of pack used.

They work very well particularly the unit with programmable servo outputs !

Regards, David Gladwin.

i3dm

My Feedback: (51)

David,

I do not know of a switchable unit to date. they are made for either Lithium 8.4V or Nicd 6V. thats about it.

THis is getting no where - the units are the same.

David Gladwin

You do now !
The Powerbox 40/16 Evolution IS switcheable according to PowerBox on their web site. Please take a look at all the specs. including the use of jumpers for battery voltage assignement on the PowerBox web site. The Evolution is switcheable to the type of pack to be used .

Regards, DG.

Dave Wilshere

Guys

The Evolution and Competition is switchable between Li-Po/Li-io and Ni cells with tiny dip switches.
This has been the case on the Evolution since day one and Competition for 6 months or so.

There is no LED calibration on Duralite, Emmerich told me they are the same...

Now on another note the RRS module is another PB brilliant stroke, you can now use your STD PB's with two Rx's from the big boys JR/Futaba etc It will also work without the PB so plug two Rx's into it and it will control the model with the strongest Rx.

regards

Dave Wilshere

Ragz

yes the evolution 40/16 is switchable..i have 2 of them and I can confirm this.

Edgar Perez

My Feedback: (13)

Dave,

Can you comment on how the units 'decides' which is the best signal? It only seems to be conected to the receiver servo outputs...

I opened an RCU thread [link=http://www.rcuniverse.com/forum/m_6012522/tm.htm]here[/link]
thanks