ronburgundy__ Posted July 23, 2006 Report Share Posted July 23, 2006 Does anyone know what size cells the G&P Crane Stocks take? Im going to try and make my own battery, but I cant find what size cells. It looks like an 'A' size to me, but im not too sure. Link to post Share on other sites
sadigh Posted July 24, 2006 Report Share Posted July 24, 2006 I thought that they were SC (subC), as used with large batts? Link to post Share on other sites
ronburgundy__ Posted July 24, 2006 Author Report Share Posted July 24, 2006 G&P Crane stocks are made to the correct size of the real thing, so they cant fit the bigger batteries. i dont think its that atleast, im not too sure. Link to post Share on other sites
TriChrome Posted July 24, 2006 Report Share Posted July 24, 2006 The largest quality battery you can fit in the G&P Crane Stock is a 2000mah (8.4v up to 12v). I would suggest getting the Prime Crane Stock instead; true, it's a little larger than the real thing, but you can fit up to a 12v 4300mah battery in that beast; and that makes it worth it in my book (or a sensible 9.6v 4300mah). Be sure to get the version that comes with the stock tube, and don't get the version that comes with the Sanyo Ni-Mh batteries (they're crappy performing batteries). Link to post Share on other sites
***Ice*** Posted July 24, 2006 Report Share Posted July 24, 2006 Spot on TriChrome, for a G&P crane stock you're looking at 2000mah GP or 2000mah Intellect cells. However with a Prime you can use sub C cells so anything up to 4300mah Elite cells. Be sure to get a Quality sub C like a GP, Intellect or Elite, at least 3300mah, the discharge rate will be far greater than you’d get from a 2000mah AF size cell, so you will notice the difference in ROF as well as capacity. Ice Link to post Share on other sites
ronburgundy__ Posted July 24, 2006 Author Report Share Posted July 24, 2006 I already have the G&P. Thanks alot though. But does anyone know what size cell fits? A, AA, 1/3A, etc? Link to post Share on other sites
ronburgundy__ Posted July 25, 2006 Author Report Share Posted July 25, 2006 Nobody? I think its A, but you just said its a 4/5A so now im completely confused. I think its an A because I measured the battery i currently have, and they seem to be A sized cells. Link to post Share on other sites
mrblah Posted July 26, 2006 Report Share Posted July 26, 2006 its the small cells, usually found in mini's. As someone said earlier, the 2000 intellect cells are the same size, or the 2000 gp. I personally just snatch the premade GnP ones that show up periodically at redwolf and wgcshop. Link to post Share on other sites
sadigh Posted July 26, 2006 Report Share Posted July 26, 2006 If it uses the cells found in mini batteries, then its the 2/3A cell. Link to post Share on other sites
Tommygunn Posted July 26, 2006 Report Share Posted July 26, 2006 Fortunately I've been doing some research into exactly this as I'm in the market for a G&P Crane stock. The cells you require are AF size and in particular 17x50mm, with the highest capacity that I have found being 2500mah. http://www.eurobatteries.com/sitepages/des...d=1152&cat=NIMH The lady who I was in correspondence with told me, and I quote: i have looked into your enquiry and spoke to the technical advisor, i have been informed that the battery has a high current, for short periods such as 25amps That's as good as it gets. If you want to see the full thread that explains all then go here(you will need to sign up if not a member): http://www.airsoftcommunity.co.uk/forums/i...topic=77721&hl= Link to post Share on other sites
***Ice*** Posted July 26, 2006 Report Share Posted July 26, 2006 That's quite impessive Tommy, I had AF cells with 2700mah capacity, although they had a discharge rate of... wait for it... 10amps - Not so impressive, they were also 17x50. http://www.overlander.co.uk/detail.asp?categoryid=64&ID=258 They'd probably last a while with a stock TM in a 9.6 configuration, but I bought them for a CAM15 - what a biga mistaka to makea. Those ones you linked look like a good alternitive to 2000mah GP's which were the AF cell to get. Ice Link to post Share on other sites
Tommygunn Posted July 26, 2006 Report Share Posted July 26, 2006 Ice, I was thinking of just doing an 8.4v configuration with the above cells in my CA 1Joule gun, which currently uses a G&P 8.4v 3000mah SubC pack in a PEQ. Obviously I want to maintain as much of the original performance as possible i.e. same rate of fire and longevity but I do realise with physically smaller cells comes less performance e.g worse discharge rate etc. Now, I know this isn't at all scientific and would purely be off the top of your head, most likely, but would an 8.4v 17x50 AF pack have the same output performance, with obviously less duration than my original 3000mah SubC pack, or would you maybe recommend going for a 9.6v 17x50 AF set-up to try and maintain as much of the original rof performance. I realise that voltage increase, on the whole, only increases 'rof' but would there be ANY benefit at all in longevity considering the change in physical cell size? Get that? What's your opinion on the matter? p.s. As a side note how do you think the above cells stack up against the G&P 17x42mm 4/5th AF 2000mah cell that you mentioned? Link to post Share on other sites
ronburgundy__ Posted July 26, 2006 Author Report Share Posted July 26, 2006 Aye, I found this cell http://cheapbatterypacks.com/loosecells/cbp2500a.gif , which is probably the same cell that you found just rebranded. So wait. 17x50 is a A Cell, which is that 2500mah one. The GP 2000mah is a 4/5A Cell, so its shorter. Do you think it would matter? Would the GP be a better cell because its higher quality or something? Link to post Share on other sites
TriChrome Posted July 26, 2006 Report Share Posted July 26, 2006 The cells you require are AF size and in particular 17x50mm, with the highest capacity that I have found being 2500mah. http://www.eurobatteries.com/sitepages/des...d=1152&cat=NIMH <{POST_SNAPBACK}> Those cells are repackaged (no-name brand). These 2000mah cells: http://www.cheapbatterypacks.com/main.asp?...pgid=loosecells "GP 2000A" 4/5A size should have better performance than the 2500mah "A" size cells. I found this information out because I emailed the guys at CheapBatteryPacks.com a couple weeks ago since I was looking for an A or AA size pack and they recommended those 4/5A 2000mah cells for a faster ROF on an Airsoft gun since they have a higher discharge rate than the 2500mah cells. These guys personally test all of their cells on diagnostic equipment which is why I trust what they say (plus I've bought around 5+ of the best quality cells for each gun I own from them). Aye, I found this cell http://cheapbatterypacks.com/loosecells/cbp2500a.gif , which is probably the same cell that you found just rebranded. So wait. 17x50 is a A Cell, which is that 2500mah one. The GP 2000mah is a 4/5A Cell, so its shorter. Do you think it would matter? Would the GP be a better cell because its higher quality or something? <{POST_SNAPBACK}> ^^ see above. Link to post Share on other sites
***Ice*** Posted July 26, 2006 Report Share Posted July 26, 2006 Ice, I was thinking of just doing an 8.4v configuration with the above cells in my CA 1Joule gun, which currently uses a G&P 8.4v 3000mah SubC pack in a PEQ. Obviously I want to maintain as much of the original performance as possible i.e. same rate of fire and longevity but I do realise with physically smaller cells comes less performance e.g worse discharge rate etc. Now, I know this isn't at all scientific and would purely be off the top of your head, most likely, but would an 8.4v 17x50 AF pack have the same output performance, with obviously less duration than my original 3000mah SubC pack, or would you maybe recommend going for a 9.6v 17x50 AF set-up to try and maintain as much of the original rof performance. I realise that voltage increase, on the whole, only increases 'rof' but would there be ANY benefit at all in longevity considering the change in physical cell size? Get that? What's your opinion on the matter? p.s. As a side note how do you think the above cells stack up against the G&P 17x42mm 4/5th AF 2000mah cell that you mentioned? <{POST_SNAPBACK}> This is just off the top of my head because I don't know enough about the cells, or what cells the 3000mah's are. However I'd say you will notice a real laps in ROF, even at 1joule, and even with your frictionless bearing gearbox. (I can remember the specs) I'm guessing you want to down the cells because you want to use a smaller PEQ box, one that isn't 3 miles high like the G&P, I know the feeling. However I would go up to 9.6 with AF cells. You will notice a slight increase, but it's either that, or suffer a decrease in 8.4 configuration. As for the 2000mah GP over this 2500; well the GP is quoted at having a 30amp burst discharge rate, which is fantastic given it's size. The 2500mah is quoted at 25amp, even if this is true it's still outgunned by the GP as far as torque is concerned. I think the bottom line is the 2500 will last longer, but the GP will give you a slightly higher, and more importantly more consistent ROF especially on longer bursts. I use 2000mah GP cells in a steel bushing gearbox (although well shimmed, still offers a lot more friction than bearings) at an FPS that is way above forum limits and it powers it nicely, with a very healthy and consistent ROF, I doubt the 2500's would have the discharge rate to do this. Just a bit of info, hope you make the right choice matey. Ice Link to post Share on other sites
ronburgundy__ Posted July 26, 2006 Author Report Share Posted July 26, 2006 2000mah GP's for me! Link to post Share on other sites
Tommygunn Posted July 26, 2006 Report Share Posted July 26, 2006 Ice, So your pack will last a days skirmish? If so they win for me as well. If not, bugger it, I'm going Li-po. EDIT: You guessed right the G&P peq is way to big and bits just keep falling off so I will go for a no fuss Crane stock. Link to post Share on other sites
***Ice*** Posted July 26, 2006 Report Share Posted July 26, 2006 Yeah, even in this gun they last a good 3000ish rounds. They'll probably last over 4000 in yours if charged correctly. Ice Link to post Share on other sites
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