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3800mah battery packs and other interesting items.


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dyrodium
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Joined: 24 Aug 2004
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3800mah battery packs and other interesting items.

Just though i should let you guys know, some may be aware that sub c 3800mah battery cells are available (insanity), however cost would probably be a setback.
http://cgi.ebay.com.au/2x-NEW-Two-Packs-Intellect-3800mAh-7-2V-Batteries-Packs_W0QQitemZ5998368494QQcategoryZ84443QQrdZ1QQcmdZViewItem
Thats quite reasonable i think, though i'm just happy with my drill nicads lol.
Also there has been massive improvements in lipo batteries so you can get packs with a reasonably good drain ability for a very low price! Very Happy

Anything else people find that's new tech or such post it here, its interesting to see how advanced the rc field is getting! Shocked
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Post Sun Sep 18, 2005 3:31 pm 
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Nick
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The IB3800 cells are getting very good reviews but that price isn't so great. The $115 pack works out to $19.16 per cell and you can buy them individually for about $6.60 from places like the RMP and Battlepacks. Even with $30 postage, you would only be paying $70 so you are effectively paying $45 for the soldering and case. If you order the same cells made up as a soldered pack from Battlepacks, the price is still only $83 landed in Australia.
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Post Sun Sep 18, 2005 4:34 pm 
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dyrodium
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oh ok. Why is it so much cheaper to get stuff from the states?! Confused
Wait... nick that was a sale for two packs, not one. Smile still pretty pricy though!
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Post Sun Sep 18, 2005 4:51 pm 
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Glen
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it probably isnt, the ebay shop is more than likely just ripping you off savagely

that or most stuff from here is already imported from the states one would assume
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Post Sun Sep 18, 2005 4:54 pm 
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Nick
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While we are talking about batteries, I should mention the NiMH and LiPo cells from Pure Hobby : http://www.purehobby.com/index.html . This place is a specialist R/C battery store and has some hard to find items like the latest 20C Polyquest cells. The prices seem competitive, although I find the Polyquest prices are almost indentical between most sites anyway.

I recently bought two Polyquest cells from Robert @ Pure Hobby after the Battlepack people refused to ship LiPo cells internationally. The 20C cells turned up inside a week (fastest USPS delivery ever) and the cells were well packed.

So far, you might be wondering why I like this place so much? It turned out that one of the cells had a wierd manufacturing fault. Even though I found the problem outside the factory warantee period, Robert ( the owner) was very understanding and after a few diagnostic emails, he offered to replace the pack for free! That's really great service and not something you would get from any of the bigger R/C stores.

Buying stuff internationally is always a bit risky, but with this kind of support, I will be getting all my batteries from Pure Hobby.

BTW: There is a 15% sale on their site and the AU dollar is at a pretty good exchange rate.
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Post Sun Sep 18, 2005 4:54 pm 
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dyrodium
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Just out of interest how much was the pack you got nick after shipping and handling? Was shipping very expensive?
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Post Sun Sep 18, 2005 5:01 pm 
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Nick
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OK, I read the "2x packs" notice and then totally forgot it when I was calculating the price. I'm wrong and the Ebay place seems to be offering a good deal after all Embarassed.

I don't quite understand their maths for the 4 pack price: is 2 packs cost $115, then how do 4 packs cost $249 without postage? That's $19 extra Confused
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Post Sun Sep 18, 2005 5:04 pm 
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dyrodium
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lol ok then. Smile
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Post Sun Sep 18, 2005 5:06 pm 
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Nick
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I got a Polyquest PX4S-1800 pack that puts out 14.8V and has 1.8AH capacity. It's rated at 20C discharge so I can comfortable draw up to 30 amps from it. the packs were $89.95 USD each.

It turns out that the Axi Brushless motor only pulls 6 amps, so I could have bought a much cheaper 10C or 15C pack and save quite a bit of cash.

If you are thinking about using LiPo batteries, I would recommend the 15C range as they are still high performance and are much flatter, giving you an easier shape to design around than the blocky 20C packs.
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Post Sun Sep 18, 2005 5:37 pm 
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dyrodium
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Ok cool. I'll try to stick to nimh and nicad packs at the moment as i have a fast charger for them. Whats your experience in shipping and handling costs? I'm interested in getting afew things, and it also opens up ebay worldwide to me. (did you know truncation is for sale on ebay? Very Happy )
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Post Sun Sep 18, 2005 6:12 pm 
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Glen
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geez build a featherweight already
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Post Sun Sep 18, 2005 6:15 pm 
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dyrodium
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lol be quiet i'm working on my annialator entry. Razz
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Post Sun Sep 18, 2005 6:19 pm 
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bytraper



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Packs are $109 now for 2, the idea behind buying 4 packs for $239 is that the seller doesn't bundle items, so for every 2 packs, it's $14.99 postage so rather than it being $247.90 he's making it $239...

Post Sat Dec 17, 2005 1:01 pm 
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