Shinobi Posted June 19, 2013 Posted June 19, 2013 Hey Guys! I'm aware there are forums similair to this, but I just wanted to throw out some specific details. I'm getting a CM16 Carbine, in about a month and I of course need a battery or two. I was looking ar NiMH's, but I have found that I can get LiPo's for even cheaper and higher MaH. Firstly, the website. Is HobbyKingz trusted? I've heard there good, but just wanted to check. Now on to the main things! Will this battery be suitable? http://www.hobbyking.co.uk/hobbyking/store/__7312__Rhino_1750mAh_2S_7_4v_20C_Lipoly_Pack.html I think it should fit, as it fits an MOE on paper. Also, the guns a CM16. Will it hold up to a 7.4 LiPo? It's 20c. I've heard that's the max if you want it to be safe. I've had no previous experience with LiPo's and i've heard there are some drawbacks like discharging. What's that? Also, it has different connectors, though I assume I can just get an adapter. I've briefly looked at chargers, but does anyone know any good ones? This was one of the ones I found: http://www.hobbyking.co.uk/hobbyking/store/__28146__IMAX_B6_Charger_Discharger_1_6_Cells_GENUINE_UK_Warehouse_.htmlWith no experience with LiPo's would that be alright? Or would it completely screw my battery and whatnot. ANything's I need to change on my gun to make it handle/be LiPo compatiable?Sorry for the long post, don't answer all the questions if you don't want ;D Thanks,Shinobi
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 Also, would any changes to the gun be neccesary?
Supporters sp00n Posted June 19, 2013 Supporters Posted June 19, 2013 Try component shop for all your lipo needs With lipo's once they start to loose there charge stop using them and charge it! Never fully discharge a lipo as it will be scrap if you do.
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 Try component shop for all your lipo needs Checking them now ;D Thanks!
Supporters sp00n Posted June 19, 2013 Supporters Posted June 19, 2013 Checking them now ;D Thanks! Just make sure you measure twice for size etc
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 Try component shop for all your lipo needs With lipo's once they start to loose there charge stop using them and charge it! Never fully discharge a lipo as it will be scrap if you do. So basically never let it die?
Supporters sp00n Posted June 19, 2013 Supporters Posted June 19, 2013 Yep that's the key, but don't worry, you will know when it's begging to run down, so can swap it out wayyyy before its at the end point
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 Yep that's the key, but don't worry, you will know when it's begging to run down, so can swap it out wayyyy before its at the end point Ok then, the place I was looking at was abit cheaper. Would the battery and charger I detailed be good? What's this whold '15c 20c 30c' thing :L
Supporters sp00n Posted June 19, 2013 Supporters Posted June 19, 2013 Yeah your right they are cheaper, and it is your choice, but unless you live in America, you may get stung for import duty etc The IMAX b6 charger is good, I use one myself, but you will need a power supply for it.
Supporters sp00n Posted June 19, 2013 Supporters Posted June 19, 2013 The "c" rating is how much current the battery discharge at any one time
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 Yeah your right they are cheaper, and it is your choice, but unless you live in America, you may get stung for import duty etc The IMAX b6 charger is good, I use one myself, but you will need a power supply for it. The products are from the UK warehouse I believe ;D Power Supply? Mains?
Supporters sp00n Posted June 19, 2013 Supporters Posted June 19, 2013 The products are from the UK warehouse I believe ;D Power Supply? Mains? Check the input for the charger, and trust me it needs a 12v dc power supply. Mine came with one that looks like a laptop charger. Dunno about where hobby king ships from.
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 The "c" rating is how much current the battery discharge at any one time What c could a CM16 Handle?
Supporters sp00n Posted June 19, 2013 Supporters Posted June 19, 2013 Sorry I have no idea on that count. I would have thought that as long as you kept to 7.4v lipo's you should be ok. I have some 25c ones in my mp5k but that's a heavily modified gun (not much standard left inside the gun).
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 Sorry I have no idea on that count. I would have thought that as long as you kept to 7.4v lipo's you should be ok. I have some 25c ones in my mp5k but that's a heavily modified gun (not much standard left inside the gun). Ok then, 7.4 20c it is then!
Supporters Ian_Gere Posted June 19, 2013 Supporters Posted June 19, 2013 20C is what Component Shop recommend for airsoft use, so I expect it'll be fine.
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 20C is what Component Shop recommend for airsoft use, so I expect it'll be fine. Ok, thanks a ton guys! Do you know if it'll wear down the gun quicker? (LiPo)
Supporters Ian_Gere Posted June 19, 2013 Supporters Posted June 19, 2013 No it shouldn't wear out the mechanical parts quicker - a 7.4V LiPo is around the same voltage the gun was designed for (8.4V) so it will run at about the same speed. Something that may well happen is that the trigger switch contacts may get worn out faster b/c you're typically dealing with a higher current initially than an NiMh battery produces. The minute damage is caused by micro-arcing which vaporises the surface of the metal in tiny pits. There is some specially designed grease to help prevent this (google trigger contact grease), but as of yet nobody on here has actually tried it so it may be bollocks. Your best bet is to fit a MOSFET to regulate power delivery. That'll save your contacts, protect your LiPo, make your motor & spring last longer, and improve trigger response.
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 No it shouldn't wear out the mechanical parts quicker - a 7.4V LiPo is around the same voltage the gun was designed for (8.4V) so it will run at about the same speed. Something that may well happen is that the trigger switch contacts may get worn out faster b/c you're typically dealing with a higher current initially than an NiMh battery produces. The minute damage is caused by micro-arcing which vaporises the surface of the metal in tiny pits. There is some specially designed grease to help prevent this (google trigger contact grease), but as of yet nobody on here has actually tried it so it may be bollocks. Your best bet is to fit a MOSFET to regulate power delivery. That'll save your contacts, protect your LiPo, make your motor & spring last longer, and improve trigger response. Alright Mate, i'll be sure to check out MOSFET's ;D
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 Alright Mate, i'll be sure to check out MOSFET's ;D Hmm, I don't really want to go and disassemble my gun :/ Might stick with NiMH's but there abit more money :/ The website i'd found was a hobby website with like £5 LiPo's (Decent Makes), but no NiMH's. Looks like i'll look for some cheap NiMH's :L Thanks though
Supporters Ian_Gere Posted June 19, 2013 Supporters Posted June 19, 2013 You can get plug'n'play MOSFETS wich dont require any gun disassembly. Although they aren't quite as good at the trigger contact saving role as a hardwired one. They're not useless though. There's a bloke selling a really good one in the classifieds on here but, for your edification, you can get the same type from Airsoft World brand new with a warranty for £30+P&P so haggle him...
Shinobi Posted June 19, 2013 Author Posted June 19, 2013 You can get plug'n'play MOSFETS wich dont require any gun disassembly. Although they aren't quite as good at the trigger contact saving role as a hardwired one. They're not useless though. There's a bloke selling a really good one in the classifieds on here but, for your edification, you can get the same type from Airsoft World brand new with a warranty for £30+P&P so haggle him... Might consider that then! I'm on a tight budget though :/ I was looking to spend £30ish pounds on batteries and cahrgers (1Batt, 1 Charge) :/ I'll definately have a look though Mate! Thanks a ton for the help!
Shinobi Posted June 20, 2013 Author Posted June 20, 2013 Here's what I think i've come to (This is all presuming I can spend this amount and can wire the MOSFET easily) . I will purchase 1-2 LiPo Batteries (7.4v 20c). Then I will get a balancer/charger and a power source (All from HobbyKingz) Then, I will get a Gate PicoSSR MOSFET (£15!?) Sound good?
Supporters Ian_Gere Posted June 20, 2013 Supporters Posted June 20, 2013 The MOSFET does sound good, yeah. Waterproof has got to be a good thing and the smaller it is, the easier it is to find somewhere in your gun to put it. That MOSFET is a hardwired type though - so you will have to take your gun apart to solder it in place and swap the existing wires about a little (although it is really easy to do and the instructions will make it clear what has to go where).
AirsoftTed Posted June 20, 2013 Posted June 20, 2013 Ian, sorry to take you off topic here but it may help others wondering. I just got one of those Plug 'n' play mosfets for my m16. Problem is the mosfet is small taimya, the gun is the large type. Do you reckon I could remove the heads, strip the wire a bit, solder them together and then wrap it in eletrical tape. I'd then be able to use the spare large female taimya on the other end of the mosfet. In theory, eletronically wise it should function, but would it still work as a mosfet?
Recommended Posts
Archived
This topic is now archived and is closed to further replies.