Recommend me a battery charger

[NitroStar]

@Jerry-rigged.. Great write up about chargers..??

I'm thinking of replacing my current setup which is too under powered 50W 5A, so I'm thinking of this...??
ISDT T6 Lite 600W 25A Smart Battery Balance Charger running off a 24V / 20A psu..
My current battery selection is a mix of 2s and 3s 5000 to 6600mAh with some 4s to follow soon

Any advice is welcome..

Have you thought of getting the HOTA dual charger mentioned above in post 283? Specs seem very good.

 

[Pfaulk54271]

Get one of these! Cant go wrong with either one!

 

[PowerDubs]

Actually I have read a lot of complaints about the little yellow one on the left regarding the selector. So much that one guy actually opened the unit and wired in his own switch instead.

 

[BashingBrian]

So I went and got the ISDT T6 Lite..?? really nice looking with good build quality and so small..!!

Will post back once I've used it a bit...

 

[Pfaulk54271]

Actually I have read a lot of complaints about the little yellow one on the left regarding the selector. So much that one guy actually opened the unit and wired in his own switch instead.

Sounds like a personal preference mod. I have had zero issues with mine, its performed flawlessly. It takes a little getting used it, thats all.

 

[JvG]

Anybody seen these / own 'm / know 'm?

https://www.skyrc.com/Charger/PC1080_Charger
https://www.skyrc.com/Charger/PC1260_CHARGER

I like the specs

(Something went wrong with the attachments, can't delete them, sorry)

View attachment 33146

 

[Jerry-rigged]

So long as you only have 6s or 12 packs, they will be fine. But no 2s/3s/4s, 6s only.

 

[Saltystevo]

Such a shame because a charger like that that inclides the power supply would be perfect. Im really amazed that no one puts anything out like that

 

[PowerDubs]

Anybody seen these / own 'm / know 'm?

https://www.skyrc.com/Charger/PC1080_Charger
https://www.skyrc.com/Charger/PC1260_CHARGER

I like the specs

What battteries are you wanting to charge- and how quickly?

 

[PowerDubs]

If you want an all-in-one solution, with industrial power-

http://chargery.com/C4012B.asp

yea- 1 channel, but hard to argue with 40amp & 1500w when plugged into your wall in one easy box. Splitters are cheap.

 

[olds97_lss]

If you want an all-in-one solution, with industrial power-

http://chargery.com/C4012B.asp

yea- 1 channel, but hard to argue with 40amp & 1500w when plugged into your wall in one easy box. Splitters are cheap.

Forgot about those. Serious stuff for parallel charging!
$350 shipped
https://www.aliexpress.com/store/pr...l?spm=2114.12010612.8148356.12.33461d17dgCHWt

Or $470 for 50A/3050w
https://www.aliexpress.com/store/pr...l?spm=2114.12010612.8148356.32.33461d17dgCHWt

Looks like they sell PSU's and external chargers too.

 

[PowerDubs]

Looks like they sell PSU's and external chargers too.

Yes they do. I have this power supply- http://www.chargery.com/S1500.asp

 

[JvG]

What battteries are you wanting to charge- and how quickly?

3x3s, 4x4s and 4x6s.

I went for 2x 750watt psu from banggood for a total of only 65 dollar (awesome discount deal if you buy 2):

https://banggood.app.link/zD4cWdYKdV

And just ordered 2x Hota D6 dual DC charger, 650watt each. I like the 1.6amp balance current per channel:

https://s.click.aliexpress.com/e/bU8MTo8p

So a total of 1300watts over 4 channels for around 300 dollar. With some parallel boards it'll easily charge 8 lipo's at 1c.

Just waiting on the boat now....

 

[PowerDubs]

Chargers are great- I just wonder if it will give you the full power on only 12v PS. Many chargers want 18 or 24 for full rated spec.

That being said- you still have a much better setup than the vast majority of people regardless, so enjoy it.

Don't forget some bat boxes or at least lipo bag and outside in your driveway charging.

 

[JvG]

Chargers are great- I just wonder if it will give you the full power on only 12v PS. Many chargers want 18 or 24 for full rated spec.

That being said- you still have a much better setup than the vast majority of people regardless, so enjoy it.

Don't forget some bat boxes or at least lipo bag and outside in your driveway charging.

Ok thanks, i will look into the volts, good point.

I do have 4 batsafes placed on floor tiles, but no driveway unfortunately...

 

[Saltystevo]

If you want an all-in-one solution, with industrial power-

http://chargery.com/C4012B.asp

yea- 1 channel, but hard to argue with 40amp & 1500w when plugged into your wall in one easy box. Splitters are cheap.

Nice, what's the cost?

 

[JvG]

Ok, let's go into the setup:

The PSU's are rated 60 amp and 12 volts.
To parallel charge 4 6s 5000 mAh lipo's on 1C the charger puts out 20 amps at max 25,2 volts, a total of 504 watts.
Fot this the charger must draw 42 amps at 12 volts from the PSU.

But the charger is rated for a max output of 2x15A, a total of 30A. So it's not possible to charge these 4 lipo's at 1c with this setup?
And to use the maximum watts of the charger (650W) i need a psu with at least 650/30=22volt?

Charger specs (DC version applicable):

@Jerry-rigged can you shine your light on this calculation? You seem to be the specialist around here.

Thanks in advance!

 

[Jerry-rigged]

Per my rule of thumb - 6s × 4packs = 24 cells, @25w per cell (for a 5a charge) rate = 600w. So you need a charger rated at 600w.

Your 500w is about right for true load, but I like to add a 25% safety factor to keep from overloading the charger. With a separate PSU, same, add another 25%, so have a PSU rated for around 750w.

For that Charger (d6 pro) It looks like 2 channels, each can do 15a@ 325w. So to charge 4 at once, you will be using a parallel board on each channel, 2 packs on each channel? I am not a pro on parallel boards, but I think you add the mah when charging parallel, so 10000mah=10a charge current, 300w per channel. So long as you are running on DC with a 750w or better PSU, it seems like it should work.

My .02

 

[PowerDubs]

He has 2 of the chargers, so no problem there, 2 batteries per charger, 1 per channel. Just need to feed the chargers enough- and I'm not sure only 12v on the PSU will do it..

 

[JvG]

Per my rule of thumb - 6s × 4packs = 24 cells, @25w per cell (for a 5a charge) rate = 600w. So you need a charger rated at 600w.

Your 500w is about right for true load, but I like to add a 25% safety factor to keep from overloading the charger. With a separate PSU, same, add another 25%, so have a PSU rated for around 750w.

For that Charger (d6 pro) It looks like 2 channels, each can do 15a@ 325w. So to charge 4 at once, you will be using a parallel board on each channel, 2 packs on each channel? I am not a pro on parallel boards, but I think you add the mah when charging parallel, so 10000mah=10a charge current, 300w per channel. So long as you are running on DC with a 750w or better PSU, it seems like it should work.

My .02

Ok thanks for the addition about the safety factor, will include that.
And yes i will use 4 parallel boards on the 2 chargers. So 8 lipo's in total.
The boards double the mAh's as you mentioned.

The calculation is for 1 psu, 1 charger, 2 channels and 4 lipo's. Should have made that clearer, sorry.

And in your rule of thumb you take 5 volts per cell? That is where the safety factor kicks in?