Hyperion EOS 1420i NET3 14s Balance Charger...

[rscamp]

Many balancers use PWM so they don't really draw less current with small imbalances - they just draw the same current for short intervals.

 

[marty]

I've got mountains of used Makita Lithium-Ion power tool battery packs. Planing on teaching myself to build large batteries for electric bicycle and scooters. Want a all purpose, good quality charger for 1s to 14s. Is this Hyperion EOS 1420i NET3 the best charger for under $200?

Any other chargers that can do 1s to 16s, 1s to 20s, or more?

 

[wojtek]

got another question - when charging 2x6s packs on the EOS 1420i, the voltage of 12 cells is different depending which balance leads is connected to port 1 and port 2

is it normal? I get big differences in cells voltages if i plug one pack balance leads to port 1 or port 2?

 

[Ziggurat]

got another question - when charging 2x6s packs on the EOS 1420i, the voltage of 12 cells is different depending which balance leads is connected to port 1 and port 2

is it normal? I get big differences in cells voltages if i plug one pack balance leads to port 1 or port 2?

Are you talking about a pack connected in series? For that the balance lead for the negative side battery must go to the right-side port. I connected my 2x5S series pack balance leads backwards once by accident and got crazy readings for cell voltages.

Otherwise, the two ports read the same for me and agree pretty closely with my BM6's when they are plugged in after.

 

[marty]

Sorry about asking the same question twice. No one answer the first time. Copy and paste question from Tue Jun 28, 2011 8:23 pm:

I've got mountains of used Makita Lithium-Ion power tool battery packs. Planing on teaching myself to build large batteries for electric bicycle and scooters. Want a all purpose, good quality charger for 1s to 14s. Is this Hyperion EOS 1420i NET3 the best charger for under $200?

Any other chargers that can do 1s to 16s, 1s to 20s, or more?

 

[Ziggurat]

Sorry about asking the same question twice. ...

...Want a all purpose, good quality charger for 1s to 14s. Is this Hyperion EOS 1420i NET3 the best charger for under $200?

Any other chargers that can do 1s to 16s, 1s to 20s, or more?

Odd that no one is jumping in ... I'm thinking maybe the "best" question is a little hard to answer.

The two chargers that seem to be favoured on E-S now are the iCharger line (1010B+ or 3010B) and this hyperion. The iChargers only go up to 10S for balance charging.

I've had both. I liked my iCharger 1010B+ a lot until it smoked and flamed after a few weeks, unfortunately. A number have had issues like that with various iCharger models (http://endless-sphere.com/forums/viewtopic.php?f=14&t=26626), but others have used them with no problems.

I like the hyperion too. I find the menus a little more awkward than the iCharger, but got used to them fairly quickly. I'm charging 10S, but its nice to know I could expand to 14S easily. So far it seems very solid.

Bottom line, if you want >10S, I think the hyperion is the way to go right now. I don't know of any others that can do over 10S.

Be aware though, that the hyperion needs a 24 V power supply to deliver its full rated wattage. I bought a 15 V meanwell for the iCharger, and using it with the hyperion I'm only getting about 230 W charging. Even allowing for inefficiencies, it's certainly pulling less than the 350 W the meanwell should be capable of.

 

[EBJ]

Be aware though, that the hyperion needs a 24 V power supply to deliver its full rated wattage. I bought a 15 V meanwell for the iCharger, and using it with the hyperion I'm only getting about 230 W charging. Even allowing for inefficiencies, it's certainly pulling less than the 350 W the meanwell should be capable of.

yeah, expect to spend as much on the charger as you do on the batteries.
haha.

I'm running my Hyperion right now for the first time.
I've got it connected to a 27V 600W PSU and it is charging at 10A no problem for the last 6 hrs.
(I can't go any higher than 10A w/ my batteries just yet, as they are only 5Ah packs and w/ a max charge rate of 2C (2C x 5Ah = 10A)
But when I parallel them into a 10s pack I'll be able to see if I can pull the full 20A

 

[AussieJester]

Highets i can manage is 11amp charging my 44v 20ah pack I'm using a pair of 24v meanwels, still
pretty quick to charge the pack up and balanced everytime

KiM

 

[hillzofvalp]

Can I hook up one 7S pack to one 1420i and another on another 1420i in linked mode, can I charge and balance? This is basically like having a super duo3 but having the ability to go up to 28s in the future...I'd hope. Otherwise charging my 14s5p pack might take a little time at around 11 amps. Haven't tested but I'm guessing 1:45.

 

[EBJ]

Highets i can manage is 11amp charging my 44v 20ah pack I'm using a pair of 24v meanwels, still
pretty quick to charge the pack up and balanced everytime

KiM

Thats good to know. Thanks.
I was wrong in thinking people were charging their 10 or 12C packs at 20A with this charger.
Turns out I wasn't calculating the 550W max, and Gary explained it to me.

So 550W / 42V = 13.09A max possible charge on a 10C battery with this Hyperion charger.
You are actually hitting the Max of the chargers ability when you are charging a 12S pack at 11A.

 

[EBJ]

Can I hook up one 7S pack to one 1420i and another on another 1420i in linked mode, can I charge and balance? This is basically like having a super duo3 but having the ability to go up to 28s in the future...I'd hope. Otherwise charging my 14s5p pack might take a little time at around 11 amps. Haven't tested but I'm guessing 1:45.

actually I think you would get something closer to:

550W / (4.2v x 14s) = 9.35 A with your 14s setup on a single charger.
And after reading the instructions It seems you could do as you are planning. In which case you could charge your 14s pack at 16.72A if you were using both chargers and only charging 7s on each.

 

[hillzofvalp]

EBJ, A123 M1 cells are 3.3 nominal.


How the heck does one contact hyperion to provide feedback or ask a simple question? is there forum somewhere for this?

Lastly, I want to play around with TVC, but I'm not sure if it's really necessary.. My pack resistance has been up all the way to 2000mOhm if that matters. But Wouldn't the charger be able to use the balance leads to determine correct terminal voltage? I don't htink there is as much resistance in the balance wires as the 8AWG I run.

 

[Planky]

Hello I have a quick question I hope someone can help with.

I have four packs of 6S 5000mAh LiPo wired up to give me 44.4V 10Ah. Currently to charge these I remove them from my KMX split the packs up and charge on a Turnigy 4x6S charger from HobbyKing. This is a single charger that can charge four packs of 6S LiPo at the same time. But I keep having problems with the charger. Channel one occasionally says "Break Down" and channel four now says "input voltage error" even though the supply battery is still over 12.5 volts.

So I am now looking at buying a higher quality charger, I am looking at a Hyperion EOS 1420i NET3 Charger and have a quick question for you guys.

Is it OK to connect two of my battery packs together in parallel to give me a 6S 10000mAh pack and charge it as a single pack? That way I could then series two of these packs and charge it as a 12s 10000mAh pack as the Hyperion 1420i can charge up to 14s.

Perhaps a picture could help!

Will it work and be safe?
Many thanks

Edit: corrected picture link.

 

[Philistine]

Hello I have a quick question I hope someone can help with.

I have four packs of 6S 5000mAh LiPo wired up to give me 44.4V 10Ah. Currently to charge these I remove them from my KMX split the packs up and charge on a Turnigy 4x6S charger from HobbyKing. This is a single charger that can charge four packs of 6S LiPo at the same time. But I keep having problems with the charger. Channel one occasionally says "Break Down" and channel four now says "input voltage error" even though the supply battery is still over 12.5 volts.

So I am now looking at buying a higher quality charger, I am looking at a Hyperion EOS 1420i NET3 Charger and have a quick question for you guys.

Is it OK to connect two of my battery packs together in parallel to give me a 6S 10000mAh pack and charge it as a single pack? That way I could then series two of these packs and charge it as a 12s 10000mAh pack as the Hyperion 1420i can charge up to 14s.

Perhaps a picture could help!

Yes, you can do that, no worries at all (I charge a 13S 20ah pack with mine). That is one of the advantages of the Hyperion 1420i, that it can take up to 14S. The only thing you should think about though, is that you said you are only providing 12V of supply? To be able to take full advantage of the Hyperion 1420i (ie that it can run up to 550W), you are going to need to get a more powerful PSU. For example I run a 26V 30amp PSU, so that I am able to charge my 13S pack at 10amps. At the start of this thread Gary explains how to use two Meanwells to get you that amount of power. Alternatively, if you are lazy like me and have the extra cash, you can just buy a single PSU with that power output.

 

[Planky]

Yes, you can do that, no worries at all (I charge a 13S 20ah pack with mine). That is one of the advantages of the Hyperion 1420i, that it can take up to 14S. The only thing you should think about though, is that you said you are only providing 12V of supply? To be able to take full advantage of the Hyperion 1420i (ie that it can run up to 550W), you are going to need to get a more powerful PSU. For example I run a 26V 30amp PSU, so that I am able to charge my 13S pack at 10amps. At the start of this thread Gary explains how to use two Meanwells to get you that amount of power. Alternatively, if you are lazy like me and have the extra cash, you can just buy a single PSU with that power output.

Thanks Philistine,

I'll go to the beginning of the thread and start reading.

 

[GGoodrum]

Yes, Philistine is right. Your diagram is correct, although I don't think you need to gang all the middle connections together. What I do is simply plug the minus (black) from one of the first packs into the positive (red) lead of one of the second packs. You then do the same thing for the other pair. I think there is a diagram on the first page.

-- Gary

 

[wojtek]

i have started charging my 2x 22v 25ah zippy packs. Connected to make 44v25ah with 2 balance leads [5packs connected in parallel balance leads]

They are new zippys, i used them few times, down to 3.95v, no issues. Today i discharged them a bit more , but none below 3.8v

then back on charger. The first block of batteries [black] was a bit out... No biggy but i was quite surprised the cells went unbalanced at all.

After few hours of balancing, i unplugged them and plug back only first black block - the voltage of six of them was different [it changed] than when all 12s were plugged in.

one of them was at 4.23v - what the heck?

anyone experienced anything similar please?

 

[wesnewell]

If I understand correctly, you have a 12s5p battery pack with the balance leads of each 6s5p side connected together. If you charge it as a 12s pack, you have to have the high side connected to the left hand balance port of the charger or the cell readings will be wrong. It sounds like you had them reversed, but it's hard to tell, as I found your post hard to decipher.

 

[wojtek]

not sure what you mean by high side , but i think i got it right. The 6s5p black cable is connected to the charger, and its balance leads are plugged to the first port A
that is how i was advised to do...

 

[hillzofvalp]

Wait a second. If I linked two 1420is and charged 14s, with 14s balance leads all on one charger (so I don't have to rewire), will the increased capacity be 1100W? In other words, I could charge my 14S life pack at roughly 20A?

 

[wesnewell]

The high side is the positive side of the battery pack, normally the red lead unless you have some really weird batteries.

 

[El_Steak]

Wait a second. If I linked two 1420is and charged 14s, with 14s balance leads all on one charger (so I don't have to rewire), will the increased capacity be 1100W? In other words, I could charge my 14S life pack at roughly 20A?

I don't think so. The "link" feature in the 1420i is to allow you to charge up to 28s and balance them together. Even then, I think the two 14s strings must not be connected in series or it would cause a short through the link wire. I charge 24s with 2 chargers, but they are not linked (they balance independently their own banks).

 

[hillzofvalp]

try charging half of your pack on one charger.. linked to the other one as well. You might have to connect one pin to the second charger (the same pin as the last cell in pack), I believe. I don't see the issue with this... and it would be great if it worked...

 

[hillzofvalp]

anyone know for sure?

 

[EBJ]

perhaps you should just shoot Hyperion an E-mail.
Be sure to let us know what they say.

Thanks. and sorry I can't answer your question.