Cellpro10s - first info

[Pinecone]

The CellPro doesn't exactly charge each cell separately like the DN Power charger does. But it does vary the voltage supplied to each cell.

Slight difference, but it can be significant.

But what he said, is why with a TP balancer or Blinky or Equinox, or other discahrging balancers, is if the pack is extremely out of balance, you will need to charge at a very slow rate until the pack is close to balanced, then you can up the charge rate.

[RC Accessory]

But what he said, is why with a TP balancer or Blinky or Equinox, or other discahrging balancers, is if the pack is extremely out of balance, you will need to charge at a very slow rate until the pack is close to balanced, then you can up the charge rate.

The reason for this is the very low bleed rate of most balancers. The Blinky is somewhere around 80 ma and the Equinox, TP, Hyperions, ect are about 120 ma bleed rates.

This is another reason I like the e-Station PB-6 balancer. Bleed rate is 500 ma. This is a significant difference in between these units.

The new TME balancer which is expected to be available around Christmas will be 450 ma. Higher bleed rate are necessary for large batteries and batteries that get out of balance.

[Ace Dude]

The reason for this is the very low bleed rate of most balancers. The Blinky is somewhere around 80 ma and the Equinox, TP, Hyperions, ect are about 120 ma bleed rates.

This is another reason I like the e-Station PB-6 balancer. Bleed rate is 500 ma. This is a significant difference in between these units.

The new TME balancer which is expected to be available around Christmas will be 450 ma. Higher bleed rate are necessary for large batteries and batteries that get out of balance.

Here are the specs on the TP-210V balancer taken directly from the TP website. See bleeding current listed as item 4. Where did yo find the rate for the TP balancer you specified above?

Specifications
1. 0.1% reference voltage controlled by microcomputer chip.
2. Balance cells: 2 to 10 cells in series.
3. Balance start voltage: 4.1V or 3.2V for >0.03V imbalance.
4. Bleeding current: Max 450mA.
5. Imbalance control voltage:+/- 0.005V.
6. Under voltage warning: 3.3V +/- 0.01V.
7. Over voltage warning: 4.3V.
8. Full charge indicator: One or more cells at 4.2V and all others within 0.01V.
9. Size: 4.0” x 1.72” X 0.72” (102mm x 44mm x 20mm).
10. Auto self-balance +/- 0.005V (cell voltage >4.1V/cell).
11. Auto self-balance +/- 0.015V (cell voltage <4.1V/cell).

[Ace Dude]

Hey Ace,

Your point that high power chargers will start to be current-limited on their inputs and demand higher voltage supplies in order to deliver their full rated output is a good one and probably mitigates against using a PC supply for chargers rated over 200-250W output. Luckily switched-mode 15V/23A (345W) units can be found for USD$63 :)

This is from the Hyperion EOS 0610i manual. Note what they say about using a 15V power supply and this is only a 6S charger. I think we'll be seeing a lot more of this on future high power chargers.

[RC Accessory]

Here are the specs on the TP-210V balancer taken directly from the TP website. See bleeding current listed as item 4. Where did yo find the rate for the TP balancer you specified above?

Specifications
1. 0.1% reference voltage controlled by microcomputer chip.
2. Balance cells: 2 to 10 cells in series.
3. Balance start voltage: 4.1V or 3.2V for >0.03V imbalance.
4. Bleeding current: Max 450mA.
5. Imbalance control voltage:+/- 0.005V.
6. Under voltage warning: 3.3V +/- 0.01V.
7. Over voltage warning: 4.3V.
8. Full charge indicator: One or more cells at 4.2V and all others within 0.01V.
9. Size: 4.0” x 1.72” X 0.72” (102mm x 44mm x 20mm).
10. Auto self-balance +/- 0.005V (cell voltage >4.1V/cell).
11. Auto self-balance +/- 0.015V (cell voltage <4.1V/cell).


You are correct the on TP balancer, I appologise for the misinformation.

[kgfly]

This is from the Hyperion EOS 0610i manual. Note what they say about using a 15V power supply and this is only a 6S charger. I think we'll be seeing a lot more of this on future high power chargers.
Thanks for the extract. I have ordered a 15V/23A (345W) SMPS for under USD$60 delivered to Australia and plan to try out an 0610i for charging A123 5s/6s packs at 10A (up to 220W output, estimated 250W input) so I guess I'll find out ;)

[Ace Dude]

Thanks for the extract. I have ordered a 15V/23A (345W) SMPS for under USD$60 delivered to Australia and plan to try out an 0610i for charging A123 5s/6s packs at 10A (up to 220W output, estimated 250W input) so I guess I'll find out ;)

I'd be most interested to see if there is any voltage sag under load. Do you have a watt meter/logger you can insert between the charger and power supply so you can graph the voltage under load.

I have a feeling Hyperion added that wording specifically because a few users were having problems using power supplies that were not up to the task with their other chargers.

[kgfly]

Sure, I have an FDR that I can put inline between the SMPS and the charger. I'll get some logs and post results, but it will be a few weeks before I have all the bits together.

[doeni]

Just a small question: If i want to just charge my A123s without Balancing them, will that be possible too? Want to charge kinda every 10th charge and not every time....

greetings daniel

[kgfly]

I'd be most interested to see if there is any voltage sag under load. Do you have a watt meter/logger you can insert between the charger and power supply so you can graph the voltage under load.

I have a feeling Hyperion added that wording specifically because a few users were having problems using power supplies that were not up to the task with their other chargers.
Quick update: with changing circumstances I ended up not using the supply myself so I cannot get these measurements for you, sorry.

[kgfly]

Just a small question: If i want to just charge my A123s without Balancing them, will that be possible too? Want to charge kinda every 10th charge and not every time....
Daniel with a Cellpro charger I doubt this is possible. But I wonder why you would bother specifically not balance charging if you have a dedicated, integrated balance charger. Unless the cells are in bad shape, the balancing shouldn't slow the charge down much. Is charge time your concern or something else ?

[doeni]

Yeah pure Charge time: going to be 10s1p A123

Just want to bang in 10A and let it charge....

I would balance them after every flightday on the field, in the evening, charging 1C, and let it balance in Peace. But outside i just want to fill them up

greetings Daniel

[kgfly]

Well if you have AC at the field, get a Mastech CCCV bench supply and charge them at 20A. Then use a blinky to balance them at home.

[doeni]

Probably be buying a mastech too, just for if i want to charge real quick, but i dont always wanna take with a mastech, because i am going with the bike to the field...

Well, if anyone knows if you can charge without balancing at the same time, let me know

greetings Daniel