PDA

View Full Version : Route 246 (Kyosho) LiPe Mini-Z batteries


Sinister_Y
2010.02.24, 08:47 AM
Hi,

First off in case you didn't know, the brand "Route 246 Planning", better know as "R246" is owned by Kyosho.

Secondly, they offer Lithium Iron (LiFe) cells for Mini-Z. These can fit into the MR-02 and MR-03 chassis without modification; MR-15 requires some modification. However, you need to use their special (aluminum) battery clips which match the cells or you can modify some existing spare (plastic) clips.

I'd like to know if anyone is interested in me bringing some into the shop to try out. LiFe cells are 3.3V so a little less voltage than LiPo Cells (3.7V).

There is a slight catch. Kyosho America only has the cells in stock. They do not stock the special battery clips at this time. As noted above, you can modify a pair of existing plastic ones (one of your spares).

Let me know if anybody wants to get it a try.

Eman
2010.02.25, 01:28 AM
I was wondering if they would fit in a MA chassis if the battery contacts were removed. Can you use a Li-Po charger or do you need a Li-Fe charger? Might be something to try out.

Red Team
2010.02.25, 02:52 AM
...Secondly, they offer Lithium Iron (LiFe) cells for Mini-Z. These can fit into the MR-02 and MR-03 chassis without modification; ...

Any ideea if these cells need a mod in the board or any other mod ?

Sinister_Y
2010.03.08, 11:30 PM
we took delivery of these cells today. I will try and install in one of my MR-02 this weekend.

Sinister_Y
2010.03.09, 12:47 PM
More details:

These cells are 800 Mah.
No balancer is needed if each "bank" is charged separately.
Total voltage will 6.6V (3.3V x 2).
Stock FETs should be okay.

I have a couple more pairs coming for others to try out. I will be trying out mine this weekend as noted (Saturday Mar 13)

ianc
2010.03.09, 02:00 PM
Total voltage will 6.6V (3.3V x 2)

Won't that pose a bit of a strain on the existing electronics? Nominal voltage of 4S NiMH cells is 4.8V...

If they are only 800 mAh ea, how will the run time stack up against the typical 3000-4000 mAh NiMH setup?

ianc

Sinister_Y
2010.03.09, 03:14 PM
According to my Kyosho USA rep, he said that stock electronics should/would be okay with these cells

Re: run time, remember that your cells are in series, so a group of 800 mah cells, still means 800 mah total. At least that was the way it was explained to me.

Kamer
2010.03.11, 06:48 PM
My expirence with does Li-Fe:

After testing them yesterday i got very mixed feelings.
the 6,6 Voltage is killing, even with a normal Chilli i had to reduce Motor power down 50% to be able to handle the Car.

Motor not getting hotter then with normal Orion 900, the Li-Fe it self heating up almost nothing at all, compare to normal Cell who getting hot.
The Board is upgreadet with 4562, 4 x times on ASF Board, the Li-Fe default connector got replaced with 1,5mm GoldConnector.

However since the only got 800mAh the are empty after max 10 min, since we drive 15 to 20 min in Finals can't use them.

Tjay
2010.03.11, 07:19 PM
Kamer: Appreciate your input on this LiFe packs. Thanks!

Kamer
2010.03.12, 05:11 AM
According to my Kyosho USA rep, he said that stock electronics should/would be okay with these cells

Re: run time, remember that your cells are in series, so a group of 800 mah cells, still means 800 mah total. At least that was the way it was explained to me.

When loading each cell only loads up around 400mAh so the 800mAh is from both.

Sinister_Y
2010.03.30, 10:59 PM
Just took delivery of the charging cords from Kyosho (R246 part). This cable has both the plug for the charger (power) along with balancer plug.

Still waiting for R246 side clips for MR-02/MR-03 along with the cable to connect the cells to board power.

Wedginator
2010.04.13, 04:03 PM
The stock mini-z board can handle up to 10 volts. 6.6 volts should be no problem.

herman
2010.04.13, 10:57 PM
off topic...
ey the wedginator returns... welcome back... what's up? it's been long time eh?

on topic...
how much do they cost? and how much would the charger cost?

Wedginator
2010.04.13, 11:04 PM
Hey Herman It's definately been a while. Glad to see you're still on the board. As long as there's a Mini-Z track somewhere, I'll be racing on it. I think I'm destined to drive Mini-Z's for life. :D

pnracingsweden
2010.04.14, 03:02 AM
The batteries work very good with MR02 and AWD but with the MR03 the twitch problem get worse.
My two MR03:s went totally bananas :-(

I love the batteries in AWD because it fits without any problems at all.
And the AWD need the extra power.
/Jocke

ub0211042
2010.04.16, 03:41 AM
The batteries work very good with MR02 and AWD but with the MR03 the twitch problem get worse.
My two MR03:s went totally bananas :-(

I love the batteries in AWD because it fits without any problems at all.
And the AWD need the extra power.
/Jocke

i use em in my MR-02 with Atomic Stock-R...need to trim down to 40% TH high point....can't control the power even with the Rony lexan Pan car bodyshell :o

be careful if wanna use on MR-03, my friend broke the servo gear 3 times using the lifepo4 batts.

found some AAA size Lifepo4 batts on eeeebay ... item no 260579269262 :D

Sinister_Y
2010.04.20, 04:14 PM
Heads up, that K America finally got stock on the R246 y-connector cables that are used to connect your car (chassis) to the Li-Fe cells.

They are on the way and should arrive next week.

I have all but the battery clips in stock. As noted, MA-010 (AWD) and MR-015 do not require any special clips. MR-03 and MR-02 do. However, I think we can modify some existing stock plastic ones. Note that the Li-Fe cell instruction booklet has them suggesting just taping the cells into the chassis.

Once the y-cables arrive, I will test and provide my feedback (along with the racers from the shop who will test as well).

dantep
2010.05.11, 06:51 AM
Anyone can verify that each LiFe battery is really 800mAh?

I have a feeling they are only 400-500mAh.

I've been using these cells on my MZM with a MR03 ASF board(MZ408) for a month now. Run time is a little shorter than my AAA Orion 750mAh SHOs, but the peak power is amazing.

Charging them one at a time, my Bantam BC6 reports about 390mAh charged capacity when done.

Bantam BC6 settings:
Battery type: LiFe (3.3V nom, 3.6V max charge voltage)
No. of cells: 1S
Max charge current: 1A
Reported voltage at charge start about 2.6V
Charged capacity when done: ~390mAh
Charge time is about 30 minutes.

My experience with my other LiFe batteries(3S A123) is that I normaly put back about 90% of the cells capacity.

Found this description at atomicmods:

"Ready to hit the gates running is kyosho's new Li-Fe battery pack It come with two 400Mah 3.3 Volt Li-Fe cells that will give you a strong 6.6+ volts. Since Li-Fe batteries are more efficient and discharge more linear, you will have longer runtimes of peak power. "

Sinister_Y
2010.05.19, 01:11 PM
Finally got to run this setup on my MR-02. It worked great. I didn't find the crazy power that everyone has commented; mind you I'm using an older PNWC 70T motor, so I think that is why. I will drop in a different motor and provide some additional feedback.

Note that we will be getting in the special battery clips from R246 for the MR03 next week. MR-02 clips are in stock.

akura2
2010.06.08, 01:54 PM
Anyone can verify that each LiFe battery is really 800mAh?

I have a feeling they are only 400-500mAh.

I've been using these cells on my MZM with a MR03 ASF board(MZ408) for a month now. Run time is a little shorter than my AAA Orion 750mAh SHOs, but the peak power is amazing.

Charging them one at a time, my Bantam BC6 reports about 390mAh charged capacity when done.

Bantam BC6 settings:
Battery type: LiFe (3.3V nom, 3.6V max charge voltage)
No. of cells: 1S
Max charge current: 1A
Reported voltage at charge start about 2.6V
Charged capacity when done: ~390mAh
Charge time is about 30 minutes.

My experience with my other LiFe batteries(3S A123) is that I normaly put back about 90% of the cells capacity.

Found this description at atomicmods:

"Ready to hit the gates running is kyosho's new Li-Fe battery pack It come with two 400Mah 3.3 Volt Li-Fe cells that will give you a strong 6.6+ volts. Since Li-Fe batteries are more efficient and discharge more linear, you will have longer runtimes of peak power. "

it's already been mentioned that you have to run the batteries together to get 800mah....

ShopNYRC.com
2010.06.10, 06:47 PM
I'm visiting Toronto next week. Where is the track located and what are the hours.

Which days does the club race? Looking forward to checking out the track.

edisme518123
2010.09.11, 11:29 PM
Any verdict on these Li-Fe batteries?

-Can they be run on a completely stock (otherwise) chassis?
-Is it worth it vs. NiMH?
-How compatible are they with the Mr-03 chassis?

(I'm just getting back into the Mini-z hobby. I used to race Mr-02's frequently at a local track, and ended up losing track of the hobby after the local hobby store closed down (along with the track). Well, it seems I'm back in the game after 3 years of money-saving vacancy.:rolleyes: So, can anyone give me a heads up?

Sinister_Y
2010.09.12, 10:40 AM
Cells are super fast. You can use them with stock board, provided it's 3010 x 4 (like ASF MR02/15/03/MA010). They fit into all chassis fine.

You'll find that with this much power, most setups will result in the car barrel-rolling on sweepers and anytime you transition quickly. Setup will definitely need to change. I also recommend the chassis weights from R246. They are only compatible with MR02/03.

SaiTam
2010.09.16, 06:14 AM
How's the run time on a non-70T motor?

lynnheartjoe
2010.09.22, 03:20 AM
Any one have a link where to get one? Also what kind of charger would I need? thanks! BTW im in the US so a local dealer would be better.