Speedzone 3.7v Lipo 4800mAh 30C
10-14-2009, 01:26 AM
#107
Tech Addict
iTrader: (122)
wouldn't two jumpers be necessary if jumpers are used?
I'd imagine that the saddle pack would have to be wired in parallel. You would actually have two identical bricks that are the size of two sub-c cells that are probably anywhere between 2000 to 2500 mAhs each at 3.7v. This would give you a pack that is 4000 to 5000 mAhs total at 3.7v. The packs should not be hard wired together. The advantage of having them separate is that racers can configure it to their cars. The other advantage of having them separate is that you would be able to charge this as a 2-cell pack on a balance charger. If the cells can actually take a 5C charge, it would be more realistic to be able to charge a 2-cell battery at 10amps than a 1-cell pack at 20 amps.
10-14-2009, 11:43 AM
#108
This is what I imagine for a brick\saddle pack. Envision a current brick 1S pack (e.g. SMC 4900 with internal connectors) and cut it in half (so each half is like the size of two sub c's). For a brick configuration the jumper can be a solid male\male plug which connects into the + and - of each half. For a saddle pack configuration create a male\male jumper to whatever length you want. This pack would work for both link and t-bars cars quite easily.
10-14-2009, 02:44 PM
#110
50C soon
10-14-2009, 03:00 PM
#111
RCmarket, 50c soon what?? saddle, 1s, 2s airplane pack, very vague.... and how soon is "soon"?
10-22-2009, 07:03 AM
#115
Hi everyone,
Here is the update. I have discussed with Ruben at ROAR and awaiting some answers.
I did not want to go ahead and produce and then have an issue with ROAR, even though there are no current rules for a 1S saddle lipo. I personally don't see an issue with my dimensions, but just want some sort of approval from ROAR to go ahead.
As far as dimensions; here is what they will be:
Height: 23mm
Width: 46mm
Length: 46.5mm
The height might be tight in some cars but there is just no way to get it any smaller and still get a decent mah rating.
Let me know if there are any questions.
Thanks.
Here is the update. I have discussed with Ruben at ROAR and awaiting some answers.
I did not want to go ahead and produce and then have an issue with ROAR, even though there are no current rules for a 1S saddle lipo. I personally don't see an issue with my dimensions, but just want some sort of approval from ROAR to go ahead.
As far as dimensions; here is what they will be:
Height: 23mm
Width: 46mm
Length: 46.5mm
The height might be tight in some cars but there is just no way to get it any smaller and still get a decent mah rating.
Let me know if there are any questions.
Thanks.
10-22-2009, 10:46 AM
#116
Tech Rookie
Hi everyone,
Here is the update. I have discussed with Ruben at ROAR and awaiting some answers.
I did not want to go ahead and produce and then have an issue with ROAR, even though there are no current rules for a 1S saddle lipo. I personally don't see an issue with my dimensions, but just want some sort of approval from ROAR to go ahead.
As far as dimensions; here is what they will be:
Height: 23mm
Width: 46mm
Length: 46.5mm
The height might be tight in some cars but there is just no way to get it any smaller and still get a decent mah rating.
Let me know if there are any questions.
Thanks.
Here is the update. I have discussed with Ruben at ROAR and awaiting some answers.
I did not want to go ahead and produce and then have an issue with ROAR, even though there are no current rules for a 1S saddle lipo. I personally don't see an issue with my dimensions, but just want some sort of approval from ROAR to go ahead.
As far as dimensions; here is what they will be:
Height: 23mm
Width: 46mm
Length: 46.5mm
The height might be tight in some cars but there is just no way to get it any smaller and still get a decent mah rating.
Let me know if there are any questions.
Thanks.
10-22-2009, 12:27 PM
#117
Hi everyone,
Here is the update. I have discussed with Ruben at ROAR and awaiting some answers.
I did not want to go ahead and produce and then have an issue with ROAR, even though there are no current rules for a 1S saddle lipo. I personally don't see an issue with my dimensions, but just want some sort of approval from ROAR to go ahead.
As far as dimensions; here is what they will be:
Height: 23mm
Width: 46mm
Length: 46.5mm
The height might be tight in some cars but there is just no way to get it any smaller and still get a decent mah rating.
Let me know if there are any questions.
Thanks.
Here is the update. I have discussed with Ruben at ROAR and awaiting some answers.
I did not want to go ahead and produce and then have an issue with ROAR, even though there are no current rules for a 1S saddle lipo. I personally don't see an issue with my dimensions, but just want some sort of approval from ROAR to go ahead.
As far as dimensions; here is what they will be:
Height: 23mm
Width: 46mm
Length: 46.5mm
The height might be tight in some cars but there is just no way to get it any smaller and still get a decent mah rating.
Let me know if there are any questions.
Thanks.
10-22-2009, 01:30 PM
#118
The sub C's that I have are 21mm X 45mm X 46mm including the battery bars. So these will be a tight fit but will work I think.
Edited to add: Just a thought but if everyone would measure out two pieces of paper the size that Gavin is going with(width and length); use those to lay on your chassis to check fit. I've tried it on three different chassis and found no issues that would prohibit me from using this size. But if anyone comes across a problem it would be better addressed now than later.
Last edited by chris moore; 10-22-2009 at 01:41 PM.
10-24-2009, 08:10 AM
#119
The sub C's that I have are 21mm X 45mm X 46mm including the battery bars. So these will be a tight fit but will work I think.
Edited to add: Just a thought but if everyone would measure out two pieces of paper the size that Gavin is going with(width and length); use those to lay on your chassis to check fit. I've tried it on three different chassis and found no issues that would prohibit me from using this size. But if anyone comes across a problem it would be better addressed now than later.
Edited to add: Just a thought but if everyone would measure out two pieces of paper the size that Gavin is going with(width and length); use those to lay on your chassis to check fit. I've tried it on three different chassis and found no issues that would prohibit me from using this size. But if anyone comes across a problem it would be better addressed now than later.
Thanks that will help
Lipo Height: 23mm x Width: 46mm x Length: 46.5mm
Sub C Height 21mm x Width: 45mm x Length: 46mm
great idea about the paper now just hope it not to tall.
Edited to add: what cars did you try them in?
10-25-2009, 06:07 PM
#120
I tried the proposed dimensions using a CEFX Chassis and Parma Speed 8 and Parma HD body...it's a close fit as I have the bodies slammed as low as possible but it works. I do not have a Protoform to try but expect it to be a non-issue.
I can not wait to use this saddle pack in a t-bar chassis.
on another note...not sure who posted it but 50C? what's the point? Not as if the pack can discharge at the claimed C rating due to the limitations of the wires and connectors. A 50C/4000 pack can be discharged at 200 continuous amps with burst over 400 amps. Good luck with that under RC applications...A 40C is more than enough for our needs...especially in 1/12th scale.
Gavin...we are all excited and waiting? Please keep us updated.
I can not wait to use this saddle pack in a t-bar chassis.
on another note...not sure who posted it but 50C? what's the point? Not as if the pack can discharge at the claimed C rating due to the limitations of the wires and connectors. A 50C/4000 pack can be discharged at 200 continuous amps with burst over 400 amps. Good luck with that under RC applications...A 40C is more than enough for our needs...especially in 1/12th scale.
Gavin...we are all excited and waiting? Please keep us updated.