RunRyder RC
 13  Topic Subscribe
WATCH
 4 pages [ <<    <     1     ( 2 )     3      4     NEXT    >> ] 4271 views POST REPLY
HomeAircraftHelicopter
e-
Electric Battery-Charger-pSupply
› Tp new big block charger
01-10-2011 04:33 PM  7 years agoPost 21
Rob43

rrKey Veteran

Midland, MI USA

My Posts: All  Forum  Topic

big block charger? 20 amps max per port?

how about the powerlab8?
Understood...I was thinking the same thing until I read the specs on the new TP unit. Unless I am missing some of the fine print, this is a fully capable dual port charger with an 800 watt rating.

As I considered this, the 1000W capability of the Powerlab doesn't do much for me, since I won't have the high-C rated batteries to charge which could max it out. I can use a lot of that power if I charge a bunch in parallel, but I'd like to charge 6S5000 and 6S3000 x 2 simultaneously. The second port of the TP allows me to take more advantage of it's capacity (using a couple of the HP 575W/47A/12V PS's wired in series. I hope I am right, because this could be exactly what I was seeking.

Rob

PM  EMAIL  Attn:RR  Quote
01-10-2011 04:36 PM  7 years agoPost 22
flying4fun

rrApprentice

Sunny SoCal

My Posts: All  Forum  Topic

Don't know where the "big block" designation comes from. I have'nt seen the full specs on the TP820, but I am guessing it to have the full 20amps charging current per port will probablay require you to have around 24VDC input power supply otherwise each ports ouput will be reduced somewhat just as the PowrLab8. The PowerLab only has one ouput charging port and its specs states that its continuous maximum output power rating is 1344W @ +26.35VDC input voltage, 612W @ +12VDC input voltage.

PM  EMAIL  GALLERY  Attn:RR  Quote
01-10-2011 04:50 PM  7 years agoPost 23
Rob43

rrKey Veteran

Midland, MI USA

My Posts: All  Forum  Topic

That's how I see it too. I think the big block terminology was just an expression. Made sense to me once I saw it could deliver 20A/400W per port X 2. Progressive RC's 306b is limited to a single 30A port. Power Lab 8, a single 40A/1000W port. This would charge one of those XPS packs at the rated 8C charge rate, but I have no interest in them due to their weight.

Many models simply aren't yet designed around high-C rate ("heavy" packs. Not all allow enough position adjustment to seek a good CG balance. Perhaps we will soon have batteries to charge that are lighter and still high C charge rated.

Rob

PM  EMAIL  Attn:RR  Quote
01-10-2011 05:31 PM  7 years agoPost 24
philip 01

rrElite Veteran

ft worth

My Posts: All  Forum  Topic

at 20amps per port it would seem that would be a max charge rate of 4c on a 5000mah pack.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-10-2011 07:51 PM  7 years agoPost 25
Futura SE

rrKey Veteran

Fayetteville, Arkansas

My Posts: All  Forum  Topic

Here is an advantage the 820CD has over say Hyperion and other chargers. Several friends have the Hyperions and etc and I have seen and played with them.

All the new ones need 25+V to do anything at all. I mean they put out no power at all with less than 20V.

The new 820CD will do 300+300=600 Total Watts on just 12V. You only need the 24V input to get the extra 100 watts per side for the total of 400+400=800 total watts.

For those who don't need to 46C or whatever charge their packs it doesn't matter. Guys we have to remember there are a lot more guys who want to charge two 3-6S 3000mah packs or so for a Trex 450-500. There sure are lots more 450's and 500's then there will ever be 700E's and I am waiting on the Logo 700. I fly big E 90's.

To me the charger makes MORE than enough power. Best part is it doesn't have to have 24V to get out of the basement power wise and everything else wants the volts to do anything and I understand why for sure, but the 820 is easier to upgrade to if you don't need big power.

Norman Ross Jr.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-10-2011 08:03 PM  7 years agoPost 26
Ace Dude

rrProfessor

USA

My Posts: All  Forum  Topic

TP-820CD will require a 27v input for max output.

  

PM  EMAIL  GALLERY  Attn:RR  Quote
01-10-2011 11:13 PM  7 years agoPost 27
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

All the new ones need 25+V to do anything at all. I mean they put out no power at all with less than 20V.
These three charges do quite well on 12v.

iCharger 306b/3010b - 500 watts on 12v
Powerlab 8 - 612 watts on 12v

PM  EMAIL  GALLERY  Attn:RR  Quote
01-10-2011 11:27 PM  7 years agoPost 28
TCP

rrElite Veteran

Kingsley, MI - USA

My Posts: All  Forum  Topic

Mark from tp told me min requirement 24v 1500amp's, to Max both sides at 400 for a total of 800.

PM  EMAIL  GALLERY  Attn:RR  Quote
01-10-2011 11:28 PM  7 years agoPost 29
Ace Dude

rrProfessor

USA

My Posts: All  Forum  Topic

FMA provides a spreadsheet that will calculate in/out values based in power source and battery being charged. It would be nice if other charger vendors offered something similar.

  

PM  EMAIL  GALLERY  Attn:RR  Quote
01-10-2011 11:45 PM  7 years agoPost 30
TJinGuy

rrProfessor

Socorro, NM - USA

My Posts: All  Forum  Topic

All these chargers are not limited in output on lower voltages because they are lame, they are limited because otherwise the input amps get to the point where it is silly. The PL8 will output over 600W on 12V but requires 60A of 12V input to do it. This means huge components, huge wire and huge connectors. By comparison, outputting 600W using a 24V power supply lowers the input amps to 30A, a much more reasonable number. So even if you never plan to output 1344W from of a PL8, using a 24V power supply gives you benefits.

- Chris

Team New Mexico
TJinTech

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-11-2011 12:24 AM  7 years agoPost 31
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

To me the whole 12v source story revolves around portable Pb batteries. If you are running any one of the big chargers off of AC, why would not have at least least a 24v setup. But with a Pb battery, its portable so it can (on a limited basis) be used for field charging. The trouble is that a Pb battery is not really a good power source for drawing more than 30amps. So beyond aproximately 300 watts you'll need to be running off of AC anyway.
It would be nice if other charger vendors offered something similar.
From the manual of another charger vendor.

PM  EMAIL  GALLERY  Attn:RR  Quote
01-11-2011 01:27 AM  7 years agoPost 32
Ace Dude

rrProfessor

USA

My Posts: All  Forum  Topic

From the manual of another charger vendor.
The spreadsheet FMA offers provides quite a bit more detail than the graph provides and includes regenerative discharge calculations as well. It also takes number of cells, termination voltage, and the packs, max charge rate as input parameters.

All to often folks get caught up in the extremes, but it's the correct application that counts.

  

PM  EMAIL  GALLERY  Attn:RR  Quote
01-11-2011 02:57 AM  7 years agoPost 33
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

Well.... it is "similar". But to your point, yes I do agree. This is how you can have a charger advertised as a 1000 watt charger that is only capable of 756 watts for LiPos. But who reads the manual these days anyway?

PM  EMAIL  GALLERY  Attn:RR  Quote
01-11-2011 05:10 AM  7 years agoPost 34
Ace Dude

rrProfessor

USA

My Posts: All  Forum  Topic

That's the problem. Nobody reads the manual and some of the manuals leave a lot to be desired.

  

PM  EMAIL  GALLERY  Attn:RR  Quote
01-11-2011 01:19 PM  7 years agoPost 35
low.level.3d

rrApprentice

Switzerland

My Posts: All  Forum  Topic

hi,

well for me big block charging starts at 1000w nothing less!!

we already have lipos with a charge rate of 8c. so I guess we will have even higher charge ratings in the future....

I would say nothing less than 1000w on 24V+

cheers,

cyril

PM  EMAIL  Attn:RR  Quote
01-11-2011 04:22 PM  7 years agoPost 36
rexxigpilot

rrProfessor

Florida

My Posts: All  Forum  Topic

Well.... it is "similar". But to your point, yes I do agree. This is how you can have a charger advertised as a 1000 watt charger that is only capable of 756 watts for LiPos. But who reads the manual these days anyway?
That's why I don't understand someone buying the 306B. The ICharger 3010B is only a few $ more and can use all 1000W with 8S and above LiPo packs of proper charge C rating.

PM  EMAIL  GALLERY  Attn:RR  Quote
01-11-2011 05:36 PM  7 years agoPost 37
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

6s and 12s (using 2x 6s packs) is emerging as the preferred pack configuration for all e-helis 500 class and up (save the Logos and Furion 6). There is really no need for anything more than 6s chargers for a lot of these pilots so why pay for it?

PM  EMAIL  GALLERY  Attn:RR  Quote
01-11-2011 05:45 PM  7 years agoPost 38
TJinGuy

rrProfessor

Socorro, NM - USA

My Posts: All  Forum  Topic

Also the 306B has 2s-6s JST-XH connectors on the side, allowing about 80% of the packs made today to be charged without a balance board, or for direct connection of a ParaBoard or other parallel balance cable. This makes for less connections between the packs and charger, saves the user money by not having to buy a balance board and makes the balance wiring generally cleaner and less cluttered.

- Chris

Team New Mexico
TJinTech

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-11-2011 06:26 PM  7 years agoPost 39
Ace Dude

rrProfessor

USA

My Posts: All  Forum  Topic

That's why I don't understand someone buying the 306B. The ICharger 3010B is only a few $ more and can use all 1000W with 8S and above LiPo packs of proper charge C rating.
I don't understand it either, but different strokes for different folks.

  

PM  EMAIL  GALLERY  Attn:RR  Quote
01-11-2011 06:51 PM  7 years agoPost 40
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

Here's another way to look it. Suppose you are considering the 300 watt 206b. The 1000 watt 6s 306b is only $55 more. If you are charging 8s or 10s packs then you might be considering the 208b. In that case the 10s 3010b is only $60 more.

It all starts with the application. If you never charge anything more than 6s, why pay more for a product that you will never fully utilize? Especially if the lesser priced product also includes features that the more expensive one is missing (see Chris's post).

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 4 pages [ <<    <     1     ( 2 )     3      4     NEXT    >> ] 4271 views POST REPLY
HomeAircraftHelicopter
e-
Electric Battery-Charger-pSupply
› Tp new big block charger
 Print TOPIC  Make Suggestion 

 13  Topic Subscribe

Sunday, June 24 - 10:20 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online