Is there any difference in the 8 cell 800ar and the 8 cell 1000ar battery packs besides about a 2oz weight difference?

The reason I ask is I'm planning on upgrading my Zagi to the 450 turbo and I know the 800ar battery packs are pretty much perfect for it. Well how would the 1000ar packs act if lets say I took 2oz of weight off my plane before adding the battery pack.

So it would be the same weight as the zagi 450turbo/ 800ar setup but with 1000ar batteries.
I would think it would be just as good and even run a little longer duration. Is this accurate?

Where have you seen 1000AR cells?

Anyway, you'd probably have a little more power, and a little more duration also.

You would be better off, however, with the new CP1300SCR cells. Weigh the same as the 800AR, but in a different package (sub-C diameter, but shorter than a 600AE cell). That would be the best choice, with 50% more duration.
..a

I looked up those CP1300SCR and they were $6.50 a cell... is that right?

The reason I was going to the 1000ar cells is because I found them for only $1.50 a cell... which are cheaper than the 800ar ($3.50)

I'd like to see the specs on these.. I've never heard of 1000AR's, but I don't know much..
..a

Sanyo 2/3 Sub-C (rapid w/tabs) 1000mAH $1.50

this is the only information they list on the cells. I guess they are actually called 1000scr? Does this make a difference in the performance that you stated above on that they would still give better performance than the 800ar if the plane was lightened up 2oz.??


<<<Where have you seen 1000AR cells?
Anyway, you'd probably have a little more power, and a little more duration also.>>>

I wunna know where you are gonna shave 2 oz from your airframe !

I have flown my Zagi on 6 cell 2000 Nicds from Radio Shack..they weigh 11.7 oz . It was kinda boring and needed a good throw. So yours will fly with the extra weight, and 8 cells will keep your attention.

Andy raises a good point though...weight IS an issue.

But the price is right !!! 1.50 ?? What a deal !! Go 4 it ! After you try them and order all you want, maybe you could share your source ?

Al

I'll second Andy's recommendation on the CP-1300SCRs. I just completed my Turbo Zagi and used these cells instead of the 800AR. My initial flight was awesome. I got 9 minutes of very aerobatic flight. I wasn't even trying to conserve power. The power didn't drop off until the last 20-30 seconds. My original Zagi with speed 400 would drop off power noticeably about 1/2 way through the flight. It also took careful throttle attention to get a decent flight time on the 500AR cells. The neat thing about this setup is that you only need full power for vertical maneuvers. It moves along nicely at 1/2 throttle in level flight.

You can purchase the CP-1300SCR batteries from www.magtechinc.net for $5 per cell.


That said... at $1.50 a cell where can I buy these 1000SCR/AR batteries? I can certainly find a use for them.


Keith

1000SCR's will work as well as 800AR's, but be heavier. If you can get them for that price and can handle the weight, then go for it! The 1300's would be better, of course, but for that price..
..a

I have a Zagi 400 and am upgrading to the 480 motor but want more time as well. How are you guys making up the 1300s in packs?

I was thinking eight cells in two rows or four standing up, that way they fit into my Zagi better.

So in considering the 800AR and the CP1300SCR, which would you recommend? What rates do you charge the 1300s at? I heard 3.5 or so is OK for the 800AR.

Nine minutes of fast flight sounds better than the four I am getting now!!!!!

The 1300's will be tricky to fit into a Zagi, but it could be done. Make sure you strap them down!
The 1300's are better cells, in power delivery and duration, than the 800AR's.
..a

I test flew the Turbo Zagi again tonight with the CP-1300SCR. That thing is a blast. The way to fit the CP-1300 8-cell pack into the Zagi is make the pack into two rows of 4 sticks. You must then cut away the interior of the battery tray on the zagi. If you haven't done so already, epoxy the battery floor that is left to the foam of the wing. I left the divider between the battery and ESC areas in place and the pack fits perfectly with these modifications.

My good digital camera is with a friend right now. I'll see if I can get some low res shots up with my cheapie so you can see how it works.

The balance is slightly nose heavy at about 7 7/8 inches back from the nose. I may remove the divider and reposition the battery pack at a later date to move the CG back a little.

I fasten the battery pack in place with heavy duty velcro. I got it in a big roll at Wal-Mart and it was called either heavy duty or industrial strength. This stuff is tough. I have to pull the battery up one side at a time with the plane on a hard flat surface to get it loose.

One thing I haven't seen mentioned about upgrading. You NEED to have some sort of spar with this kind of power and weight. I use a .196 carbon tube made by Avia Sport. It is sold in kite shops.

I'm still figuring out the best charge rate for the CP-1300. Using my Orbit Pro charger it automatically selects 7.5A charge at the beginning and drops off to about 6A towards the end of the charge when I use it in NiCad mode. The battery gets very hot towards the end of the charge in this mode. I have also tried it in NiMH mode and it charged at an average of about 3A with negligible heating of the pack. The right answer probably lies in between those amounts. I'll experiment with fixed charge rates in different modes and see if I can come up with something useful.

Keith

Here are some Very low resolution pics of my Zagi with the CP-1300SCR batteries.
http://www.velocitymodels.com/pics/other/trbozagi.JPG http://www.velocitymodels.com/pics/o...bozagitray.JPG http://www.velocitymodels.com/pics/other/8cp1300.JPG http://www.velocitymodels.com/pics/o...ibattfront.JPG http://www.velocitymodels.com/pics/o...gibattdown.JPG


This type of installation should work for the 1000scr batteries, but you will probably have to remove the divider between the battery and ESC areas.

Keith


[This message has been edited by realdeal (edited 06-06-2001).]

This weekend AW is testing the batteries with a 400bb .. if the results are pleasent I will make my major purchase then I will post the source for yall to enjoy..
I will also post my results of the batteries with the 450turbo/1000scr when I get it set up..

ive found that a nice upgrade for a stock zagi is to re-configure the 800 AR's to a long pack ==== and cut out the forward raised part of the tray, AND the back raised part of the tray. it fits like a dream!

You dont need any velcro! it lowers your vertical CG alot! and lets the pack cool easier.

It also gives you a little faster roll rate, because of the lower vertical CG

its well worth the little trouble.

Originally posted by barn buster 50:
You dont need any velcro!

Don't even THINK of flying without Velcro! Also, with teh heavier 800AR's, consider installing a strap wrapped around the packs. The first time you try an outside loop without velcro and, in some cases, the strap, you'll know why I say this!

..a

..my pico jet combat was unharmed!