HobbyKing Online R/C Hobby Store : Turnigy 420 Balancer/Charger 2S~4S

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6/12/2010
BillH (52%)
Can you charge 2 two cells at the same time?

BillH (52%)
EX: If I am charging 2 two cells at the same time, 1000 mah each, do I charge at 2 amps total ? Or still at a max of 1 amp?

chulian (50%)
Yes, I charge 2 750mah 2s at the same time, but charger only displays if the first is conected

Hunter (34%)
yep. you can charge 2 2cell lipos at once.

dcockburn (50%)
This little charger is ideal for indoor/park models as you can balance charge two 2s packs simultaniously

jdale (-25%)
You can charge 2x 2s at the same time, but your current limit is across all the cells so it'll take twice as long

cyberjackal (13%)
It's have a 2 two cell battery plug but i dont tryed it

4/12/2010
Etham (73%)
Pluged a 2S lipo today on my new Turnigy 420. Display smoked out and cell number 2 charger doesnt work. Waiting for HK customer service to give me a solution.

Etham (73%)
Customer service told me to return on my cost the 23dollars charger. Nice. Since i've sent back an DL50 engine 4 months ago and still got no solution, decided to buy another charger and take the failed one and use it as a cup-holder in my desktop. HK is good for prices, but Customer Service s^^ks. Shared opinnion in my club.

4/1/2010
comma (50%)
I dont know way but my cells light are steel red when the digit display show me 100% for each cell ... way?
and for a batteries with 3 cells, 11.1v, 1800mAh what current I must to select?

Tomasz (60%)
Hi ! It is normal. About 20 minutes after 100% you have wait for green. You should use 1.5A Best Regards Tomek

Matthew (50%)
Charge an 1800 mah at a rate no greater than 1.8 amps. Best to charge slower than the charge capacity.

Hunter (34%)
will stay red for a while until 'balanced.' then will turn green.

12/20/2009
Espen (50%)
Hi..I use this charger with DC13.5 volt input from a 5A supply, and after adjusting the potensiometers inside fully clockwise (CW)gave 4.14, 4.11 and 4.13 volt on a 3S 2200mA. Then i adjusted all the potensiometers fully anti clockwise (CCW)and this helped a bit, 4.17, 4.16 and 4.16 volt. Then i just adjusted the potensiometer for cell 1 a little clockwise.Is it safe to use up to 18V DC input???

12/8/2009
Terry (56%)
Where do you get instructions for the camera and what do you do when you get error message when you plug it into the computer (USB device is not recognized please unplug and retry)???

12/2/2009
kid_spl85 (22%)
Dear All, Id like to know how you will calibrate this charger, i opened it and found 4 pots for each charging circuit, does turning it clockwise increses charge cut off voltage? one morething is that the readout display charge status as percentage are there any mods to make it as voltage readout?

kid_spl85 (22%)
anyone care to help?

12/2/2009
scterry (6%)
Does the .5A, 1A, 1.5A, and 2A indicate the current going to each cell or is this the MAX current for the battery back. For example, if charging a 1000mAh 2S Lipo with the 1A setting, will it give .5A to each cell taking 2 hours to charge, or 1A to each cell taking 1 hour to charge (theoretically).

11/18/2009
itsme (50%)
Can this chager chage Lithium Ion batteries?Thanks!

11/4/2009
mc4798 (69%)
So when I use this charger do I plug in the balance plug and the battery plugs or just the balance connector

jonathan (73%)
you plug the balancer plugs into the side and it charges through the balancer

10/11/2009
seedo (67%)
guys i used 12 volt power supply and the charger keep reading the same numbers y is that whats wrong

9/26/2009
lalagi (52%)
can i charge with 2c the battery?

T.rex.450 (55%)
Hi!

You can charge with 2C if your battery supports 2C charging.
If not I strongly suggest that you only use 1C charging since any more current could make your battery catch fire!!!
Read the battery manufactures instructions and follow them.

9/23/2009
Imphaetus (50%)
what all does this come with? deans, traxxas, losi, etc connectors?

T.rex.450 (55%)
Hi!
It comes with a connection wire with alligator clips and a plug that fits the charger. This hardness is for connection to 12v.

The plug for connection to batteries is of JST-XH type. You only connect the balance plug and the charger will charge each cell through the balancing hardness attached to the battery. You do not connect the battery discharge plug to the charger at all so it does not matter which plug you are using as long as the balance plug are of JST-XH type (Rhino, Zippy, Turnigy etc use this plug).

You can connect 4s, 3s or 22s batteries to this charger.

9/19/2009
Lindsay 22 (84%)
What is the best power suply for this charger

T.rex.450 (55%)
The 12V 5A Power Supply from HC will plug right in to this charger and it does a good job supplying the needed current.

Ednac (77%)
I use an old computer power supply, with some banana/screw terminals mounted to the outside of the case. These supplies give clean 12V power and are capable of quite a few amps.

9/19/2009
Lindsay 22 (84%)
Are the balence plugs the standard JST-XH. will it charge 1000mAh's and 5000mAh's?

T.rex.450 (55%)
It will charge 500-5000mAh and higher capacity batteries. But when you connect 2000mAh and higher capacity batteries it will take over 1hour to charge it. The 5000mAh battery will in theory use 2.5hour to recharge if completely empty.

It is the standard JST-XH balance plug.

8/10/2009
plane awesome (20%)
quick question, If you choose to attach this charger to a car battery, Can you have the car running, or does it need to be off?

Flew Boy (89%)
Works great :) I do it alot because I also charge 3000mAp 5s batteries and my car battery goes flat :( just stop the charger, start your car then start charging again :D happy flying *)

6/27/2009
Max (94%)
I'm totally confused. My charger seems not to work properly at all.
Got x2 2s800mah
both are around 3,6v on all cells.
Charging starts, after an hour or so I see blinking.
1-100% 2-65% 3-80% 4-92%
It didn't charge them but totally disbalanced.
Took me hour to balance the packs back with Infinity charger.
Am I doing something wrong?
It is not able to charge even 1 2S. Only 3S seemed to charge fine once.
I won't be buying such craap anymore *)

bdoets (87%)
I'd say the one you got is faulty. This thing is supposed to be completely foolproof - I got its older twin brother HXT 8080 and it never let me down. Balances may be off small percentages, never mind.

6/27/2009
Kansascloud (24%)
Is the cooling fan supposed to run all the time?

Wireman (61%)
Yes, it does. Until the charge cycle is done, you can hear the fan going. But that's ok, I think. It's not too noisy as I think anyways.

6/1/2009
Expert (80%)
you can charge only at 1A
12 and 13 volts no so differents

5/31/2009
rhondas (58%)
will a 13 volt 1 Amp wall charger work with the turngy 420 charging a 2150mah 3s rhino battery. so far not to many answers for the wall chargers questions and mostley about what amps needed in a wall charger for 12 volts? thanks anyone .

Flew Boy (89%)
copy and paste this link, this is the power pack I use and it's perfect.
***********hobbycity****/hobbycity/store/uh_viewItem.asp?idProduct=6256&Product_Name=12V_5A_Power_Supply

Flew Boy (89%)
Woops, I forgot H,King won't let you type web addresses, try this h ttp://w ww.hobbycity.c om/hobbycity/store/uh_viewItem.asp?idProduct=6256&Product_Name=12V_5A_Power_Supply

Flew Boy (89%)
There :) just take out the spaces in the http and www and com bits that should work.

Max (94%)
I'm totally confused. My charger seems not to work properly at all.
Got x2 2s800mah
both are around 3,6v on all cells.
Charging starts, after an hour or so I see blinking.
1-100% 2-65% 3-80% 4-92%
It didn't charge them but totally disbalanced.
Took me hour to balance the packs back with Infinity charger.
Am I doing something wrong?
It is not able to charge even 1 2S. Only 3S seemed to charge fine once.
I won't be buying such **** anymore *)

Ru7hl355 (50%)
what amp setting so i use to charge a 1050mah 2S?

Wireman (61%)
My Turnigy 420 doesn't make a good job to either the 2S 800 mAh or the 3S 2200 that I have. When it states 100%, my little E-Sky charger need around an hour to fill up the bigger ones, and like 30 minutes to fullfill the smaller Li-Po's I have.
Anyone having the same problem?
\\Wireman

jonathan (73%)
can this charger go with a power supply

5/31/2009
rhondas (58%)
does anyone have the instructions for for a turngy 420

jonathan (73%)
it doesnt come with instructions

arfonzo (63%)
How it works:

Without connecting power. Plugging the battery, the display indicates the percentage of cargo that has this. The lights are red.

Under Power:
Fan runs.
Plugging the battery, the load percentage is rising.

After the load, the screen shows 100% and the lights are green.

That's all.

5/21/2009
RC Mechanic (80%)
Would this charger charge a 180mah battery ok?

Beaufighter (25%)
No, not safely. As the minimum charge current is 500mA, you will charge at 2.5C, and unless your battery is rated for 2-3C charge, it is not safe, nor good for the battery lifetime.

5/12/2009
Alan (82%)
I am pleased with mine, can't buy anything like it for that price in the shops over here.

5/12/2009
NEPTUNESP2H (48%)
Peter Mclean,

Have just purchased this ballance charger and it is fantastic to use in conjunction with 3s and 2s batteries in the plane whilst at the field.

Excelleny.

4/21/2009
neo1234 (16%)
Hi, can I use wall adapter od DC12V and 500mA? I will only charg at 500mA or can I get more A?

4/14/2009
mattk0 (70%)
Yea, I've tried about 3 now and all get to about 4.14 at the most.

Beaufighter (25%)
You get a somewhat early shutoff if charging a little to high current (if your battery is a 1300mAH and you charge 1.5A) Charge at lower current, and you end up with a higher cutoff voltage.

jetspeeds (81%)
all cells should finish at 4.2v. charging to high can damage batteries. If it still happens at a lower Amp then your charger might be faulty??

mattk0 (70%)
Thanks Beaufighter. I think that might be the case. I was charging 350mah batteries at the .5A rate. I'll try my 800 on the 1A rate and see what happens. Thanks,

Beaufighter (25%)
Try the 800 battery at 0.5A setting to see if it ends a bit closer to 4.2V.

Btw, a cell difference of 0.01-0.03V must be acceptable on a cheap charger like this (if you calculate the percentage, you'll find that it is very accurate:)

pudytat (98%)
This is a balanced charger, not a BALANCING charger. If your battery pack is unbalanced from the get-go, it will not fix it.

4/14/2009
mattk0 (70%)
So far I'm liking the simplicity of this charger but is anyone else having issues with it only charging to 4.13ish and not being perfectly balanced (according to my voltmeter it shows, 4.13, 4.09 and 4.12)

jetspeeds (81%)
sounds like something is wrong with your battery. have you tried other batteries with the charger?? I have not got one but someone else does at our club and he is very happy with it and has not told of any problems in charging

way2broke (75%)
does the red digital read out come on automactically, mine does not show any numbers or anything new battery, old battery, charging or not nothing.

way2broke (75%)
hello folks can someone please offer somehelp on the above subject..please

CARL (90%)
Hi way2broke,yes the red display will come on whilst charger is charging and it cycles through giving a % reading of each cell being charged,continually repeating*hope this helps you?Thanks.

Alan (82%)
You must use the charger outlets in sequence ie 1/2/3/4. so. if you are charging a 2c bat in the 3/4 outlet you will not get a digital read out, try it in the 1/2 outlet socket, hope this makes sense. Cheers

khaberst (88%)
Does anyone know what it mean if you get a red light on one cell and green on the others? Also my digital display is not showing anything.

jt (40%)
red means it still isnt fully charged, if its green that cell is at full charge

Pasan (87%)
Does anyone know how this charger actually works? I'm under the assumption that it charges each cell individually through the balance tap rather than just discharging to balance as per regular balance chargers. Please correct me if I'm wrong, because my decision to purchase one is dependent on this one factor.

Beaufighter (25%)
It does charge each sell through the balancer tap, yes! It is also of parallel type, so it charges any lipo that will fit in the plug (It is not dependant of pinout, so it will even charge my Kokam which is impossible on other china chargers..)

Rich404 (86%)
What kind of wall adapter do I need to plug this charger into a wall * home?

pudytat (98%)
You need a DC adapter, this does not plug directly into the wall itself.

Robert (50%)
What power supply is recommended for this charger?

Bjarne K (62%)
i use a laptop charger.but check the voltage some of them give more than the 18volts this charger can handle.

khaberst (88%)
Is there a manual for this charger?

rhondas (58%)
suzonka yes here but set up the amps first
Step one: Connect charger to power source.
Step two: Plug in battery.
Step three: Press tiny start button next to charging plugs.
Step four: When all lights go green or charging percentage shows 100% disconnect battery.

Dustin (88%)
where do i get a wall adapter for this thing, and what size plug in does it take?

rhondas (58%)
DONT NEED ONE JUST CLIP TO A CAR BATTERY OR A JUMP STARTER portable battery ,your lipo plugs into its proper socket on the side.

Edwin (67%)
Who canlp and tel mme what the buttin on the frot z.oa 1.sa 1.oa o.sa means e heand and when to youse witch when??

rhondas (58%)
those are amp settings , that you set up befor you do anything,always set it lower than the battery amperage in mAH example 2200 mah set it for 2 amps

Daniel (29%)
will an 15v DC wall adapter work on this?

EugeneBee (97%)

Of course would be, but pay attention to the power source, it should provide a current of 0.5 to 2 A

rhondas (58%)
yes but AS DANIEL SAID ABOVE a wall type has to have at least 2 AMPS AT 12 -14 VOLTS AND 2 AMPS IS 2,000 MILLIE AMPS.

I_Gotts_Ta_Fly (65%)
This unit looks quite similar to the hexTronik Balancer/Charger Dual Charge Capable ($27.68).

Same dimensions.
Dimensions: 132x82x35mm (same enough)

Difference is that Turnigy has the % readout. I wonder if one is a knockoffs of the other, or are they the same internally made by the same OEM manufacturer?

Has anyone made a comparison internally?

rhondas (58%)
I just got my trungy 420 its the greatest thing since cracker jacks, hook it up right push a button ad monitor the %%%% read outs perfect all lights go green at 100% done go fly.

rhondas (58%)
Heres the manual for the turngy 420 ,
Hi there,

Step one: Connect charger to power source.
Step two: Plug in battery.
Step three: Press tiny start button next to charging plugs.
Step four: When all lights go green or charging percentage shows 100% disconnect battery.

Please let us know if this helps.

Best regards
Christie
FlyFun Hobbies

Robert (93%)
How long should it take to charge a 2S 4000mah 25C with a charger like this??

clark06000 (72%)
This charger goes up to 2 amps charging, so it will take about 2 and 1/2 hours for a complete charge providing your battery is empty (close to 0% on the charger display, at plug in).

Kaisar (76%)
I can see 4 battery imput's* 2x2S, 1x3S, 1x4S!
So this is a dual charger for 2S, isn't it?

Jason5001 (-7%)
Right on.
You can charge two 2S at the same time!

rhondas (58%)
no but this other charger hobbie city sells will do it check out the specs

hexTronik Balancer/Charger Dual Charge Capable (JST-XH Plug)
Input Voltage : 9~15V DC
Output : (8.4v x 2) OR (12.6v x 1) OR (16.8v x 1)
Auto balancing
Auto Overcharge Protection
Size: 132x82x35mm
Weight: 309gr
Comes with a balancer and overcharge protection inbuilt.
It can charge from 2S to 4S packs and can also do TWO 2S packs at ONCE!! Which is a real bonus!
The charge port connection fits all Polymax, hexTronik, Dualsky, Align, Kokam etc.. battery ports.
You can adjust the charge rate from .5A up to 2.0A for a fast charge.

okjames (71%)
An excellent solution for power hungry chargers.
The A20 can supply a constant 16A at 14v, making it perfect for chargers using alot of power to charge big packs fast, or you can hook up 2 or 3 smaller chargers to charge up to 5 or 6S packs each.
Even if you dont charge at high rates, having a solid power supply like this will ensure the charger is supplied with a good constant current, helping it to balance cells and operate better.

The charger will suit 100-240v 50-60Hz home power points. The plug uses a common kettle type, so it will be easy to source a local power cord, or an adapter for the USA style plug.

Spec.
Input: 100~240v
Output: 14v * 16A constant Important.
Internal fan thermostat set to 60Deg Celcius. Fan will not run unless power supply internal temp reaches 60DegC.

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