New charging method for rechargable batteries

[rcpilot.eu]

RCPILOT.EU - PARALLEL CHARGING METHOD FOR RECHARGEABLE BATTERIES
Questions replies and additional clarifications


Dear All,

During the time of our summer vacation the recent publication of our website in Internet on 06th August 2007 caused a number of discussions in the forums all over the world.

Questions that had been raised to us via e-mail or written in the different forums, made us provide you with the following clarifications:

What WE HAVE DONE :

- We have developed a new patented METHOD for work with ALL KINDS OF rechargeable batteries which name is PARALLEL CHARGING METHOD.

In contrast to all existing methods that charge the battery as a whole, consisted of serial and/or parallel connected elements, the PARALLEL CHARGING METHOD individually charges each one element of the battery. It permits fast battery charging by dividing them into parts at charging and their reverse recovery at usage.

- We have applied the PARALLEL CHARGING METHOD for work with rechargeable batteries in a specific power system using A123 cells.

We have tested the manufactured by A123 Racing charger – Sonic Charge – and have determined that it charges a battery from 1 to 3 elements for 30-40 min. In our turn we have developed a charger that can charge a battery, consisted of up to 12 cells as it groups them in groups (subpackages) of 1-3 elements each as the whole charging process takes maximum 15 minutes;

- The developed by us chargers 4SubPack Charger and 2SubPack Charger in reality correspond to 4 pcs and 2 pcs A123 Racing chargers in one box as they have a new charging algorithm and a new balancing algorithm;

- We have developed hardware decisions facilitating A123 cells utilization. These hardware decisions - Battery 4/6/8/12CellKIt – are designed for ensuring a different form factor and voltage and are conformed to the usage in different R/C models;

- We have developed a Mechanical Kit for JR Vigor & Vibe. It is designed for pre-configuration of helicopter models JR Vibe 90 and JR Vigor 60/CS from a drive with internal combustion engine to a drive with an electrical one. The Mechanical kit is made to facilitate the assembling of Battery 8/12CellKit to model JR Vigor & Vibe as compactness of the model is being preserved;

- We have developed specialized accessories which to add and facilitate your work with the offered by us products – a canopy, bags for helicopters, neck strap for carrying R/C transmitter and other ones;

- We have created video materials which to visualize the assembling of the offered by us battery cell kits.

What WE HAVE NOT DONE :

We HAVE NOT developed new batteries !

Right after their appearance on market the used by us A123 Racing batteries caused a big international response (completely deserved).

Parameters like :

- high current for charge and discharge;
- 1000 + charge and discharge cycles;
- shock resistance;
- 2 volts cut off;
- not flammable;
- a wide work temperature range,

could not stay unnoticed for our team and we apply them in one of the applications of the used by us PARALLEL CHARGING METHOD for rechargeable batteries.


What you may do :

- To use our chargers and PARALLEL CHARGING METHOD as:

Recharge purchased by you A123 battery packages;

Purchase a Developer’s Kit from A123 Racing company and use it on our battery cell kit;

Purchase a Developer’s Kit from A123 Racing company and make your own battery cell kit;

- To use PARALLEL CHARGING METHOD at your work with all kinds of R/C models – including but not limited to:

- R/C planes;
- R/C cars;
- R/C boats;
- R/C helicopters;
- other battery charged R/C models;

- To use our new Mechanical Kit for pre-configuration of helicopter models from a drive with internal combustion engine to a drive with an electrical one.


What we continue to do :

Our team continues to work on a new mechanical kit, a new navigational system, existing kits updates as well as on different tools which will make your handling with radio controlled models a real pleasure.

Policy of our company is not to announce any information before development of the corresponding product has been finalized, the product manufactured and it to be available on stock.

We hope that with the above presented information we have been able to reply to all your questions as for the moment as well as we to have given you the necessary clarifications.

www.rcpilot.eu

[rcpilot.eu]

Here are pictures of some of our products:

[forgues research]

	Quote: Originally Posted by rcpilot.eu
	RCPILOT.EU - PARALLEL CHARGING METHOD FOR RECHARGEABLE BATTERIES Questions replies and additional clarifications Dear All, During the time of our summer vacation the recent publication of our website in Internet on 06th August 2007 caused a number of discussions in the forums all over the world. Questions that had been raised to us via e-mail or written in the different forums, made us provide you with the following clarifications: What WE HAVE DONE : - We have developed a new patented METHOD for work with ALL KINDS OF rechargeable batteries which name is PARALLEL CHARGING METHOD. In contrast to all existing methods that charge the battery as a whole, consisted of serial and/or parallel connected elements, the PARALLEL CHARGING METHOD individually charges each one element of the battery. It permits fast battery charging by dividing them into parts at charging and their reverse recovery at usage. - We have applied the PARALLEL CHARGING METHOD for work with rechargeable batteries in a specific power system using A123 cells. We have tested the manufactured by A123 Racing charger – Sonic Charge – and have determined that it charges a battery from 1 to 3 elements for 30-40 min. In our turn we have developed a charger that can charge a battery, consisted of up to 12 cells as it groups them in groups (subpackages) of 1-3 elements each as the whole charging process takes maximum 15 minutes; - The developed by us chargers 4SubPack Charger and 2SubPack Charger in reality correspond to 4 pcs and 2 pcs A123 Racing chargers in one box as they have a new charging algorithm and a new balancing algorithm; - We have developed hardware decisions facilitating A123 cells utilization. These hardware decisions - Battery 4/6/8/12CellKIt – are designed for ensuring a different form factor and voltage and are conformed to the usage in different R/C models; - We have developed a Mechanical Kit for JR Vigor & Vibe. It is designed for pre-configuration of helicopter models JR Vibe 90 and JR Vigor 60/CS from a drive with internal combustion engine to a drive with an electrical one. The Mechanical kit is made to facilitate the assembling of Battery 8/12CellKit to model JR Vigor & Vibe as compactness of the model is being preserved; - We have developed specialized accessories which to add and facilitate your work with the offered by us products – a canopy, bags for helicopters, neck strap for carrying R/C transmitter and other ones; - We have created video materials which to visualize the assembling of the offered by us battery cell kits. What WE HAVE NOT DONE : We HAVE NOT developed new batteries ! Right after their appearance on market the used by us A123 Racing batteries caused a big international response (completely deserved). Parameters like : - high current for charge and discharge; - 1000 + charge and discharge cycles; - shock resistance; - 2 volts cut off; - not flammable; - a wide work temperature range, could not stay unnoticed for our team and we apply them in one of the applications of the used by us PARALLEL CHARGING METHOD for rechargeable batteries. What you may do : - To use our chargers and PARALLEL CHARGING METHOD as: Recharge purchased by you A123 battery packages; Purchase a Developer’s Kit from A123 Racing company and use it on our battery cell kit; Purchase a Developer’s Kit from A123 Racing company and make your own battery cell kit; - To use PARALLEL CHARGING METHOD at your work with all kinds of R/C models – including but not limited to: - R/C planes; - R/C cars; - R/C boats; - R/C helicopters; - other battery charged R/C models; - To use our new Mechanical Kit for pre-configuration of helicopter models from a drive with internal combustion engine to a drive with an electrical one. What we continue to do : Our team continues to work on a new mechanical kit, a new navigational system, existing kits updates as well as on different tools which will make your handling with radio controlled models a real pleasure. Policy of our company is not to announce any information before development of the corresponding product has been finalized, the product manufactured and it to be available on stock. We hope that with the above presented information we have been able to reply to all your questions as for the moment as well as we to have given you the necessary clarifications. www.rcpilot.eu

Very interesting, keep up the good work..

Regards
Roger

[ramboman]

I would appreciate a clear explanation of the process. As far as I understand, you charge strings of 3 cells in parallel. Each string of 3 is charged as a string, with balancing tabs between the cells, so you should balance too !? How do you balance, in a shunt resistance or by moving electrons from one shell to the other ?
I charge my 6-cells packs under 24V thru a simple .5 ohms resistance, but balancing is an issue: you have to balance a123 cells.
More, I work presently with 12s2p (4 coupled packs), that are presently charged in CC-CV under 48V, 20A.
What is your suggestion ?

[ConRadical]

Interesting... I also look forward to more detail.

[rcpilot.eu]

Hi there and thanks for the questions..
Here are the answers:
As far as I understand, you charge strings of 3 cells in parallel. !!!! - the cells are in serial and the strings are in parallel.

Each string of 3 cells is charged as a string, with balancing tabs between the cells, so you should balance too ! Yes we are balancing during the charging process

How do you balance, in a shunt resistance or by moving electrons from one shell to the other ? - Shunt resistance

I work presently with 12s2p (4 coupled packs), that are presently charged in CC-CV under 48V, 20A.
As you said you must balance the cells, you can get a balancer and charger or just balancer.

Regards
Zhivko Todorov

[ramboman]

The charger, I have: either a 48V lead battery or a MasTech 5020.
The balancer, I have: a Robbe that can balance at 70mA.
What I need is an equalizer that can move electrons from one cell to another, something like the Shulze but with high current. Charging at 20A !

[rcpilot.eu]

Hi again,
Unfortunately I can not suggest such equalizer..
Our balancing current (2Subpack and 4Subpack charger) is round 2 Amps

Zhivko Todorov

[ramboman]

Let's take the problem from another point of vue.
Your charger charge at 10A and balance at 2A.
Each charger can charge 4 strings of 3 at the same time.
So, if I want to charge 8 strings of 6 at the same time, I have to:
- split my 6-packs as dual 3-packs (feasable);
- change the connectors (a solder job);
- buy 4 chargers (or 2 if charging in 2 times)...
What would be the price for 2 chargers with the appropriate cables?

[rcpilot.eu]

Hi there,
interesting questions..

Well if you need to charge 48 elements and want to use our charging system you will need to reconfigure your battery packs.
But I am a little confused, you said that you are using 12S2P now you are talking about 48 elements.
Just to mention that if you want to charge 48 elements battery with 4 chargers you will need 12V with minimum 160A available in this case!
If you reconfigure you battery pack in order to use our chargers, I recommend to use our 12CellsBattery Kits because of the ease of reconfiguring for charging and using.

About the price of our products you can check the e shop of www.rcpilot.eu
You may heard that our new cheaper versions of charger are in beta testing stage so I hope in a week, or even sooner they will be available at very low price.
And about the cables you will need depends on that if you will use our battery kits or you will decide to make a custom battery packets with the corresponding wires for using ultra Dean conectors-check the e shop again

Regards
Zhivko Todorov

[ramboman]

I use two 12s2p in a twin, that makes 48 cells !
They are presently assembled as eight 6-packs using soldeless tubes with add'l 3amps balancing taps and 4mm gold connectors.
Each 6-pack can be charged from 24V thru the .5 ohm resistance.
The work is not too hard to modify a 6-pack into a dual 3-pack and to bind two together as a 6s2p with the appropriate connector to match your charger.
So, I am waiting for the new prices

[rcpilot.eu]

So you have decided to use the ultra dean charging cables..
Ok, about the prices they will be available soon.
Regards
Zhivko Todorov