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>> Home > Tags > lipo

lipo
lipo
JOINING BATTERY & RECEIVER CABLE by RNinMunich Fleet Admiral!   Posted: 5 days ago
Hi Les, then I assume that you need something like this harness with JR/Hitec male & female plug/socket. This one also has a third plug for connecting the battery to a charger when the switch is in the off position. DON'T use this feature if you are using a LiPo battery!! There are several other versions without this third plug available here http://www.componentshop.co.uk/futaba-charging-switch-harnes... I guess the RX battery is a fairly small NiMH and also has the JR type plug. BTW: something to check before switching on- Does your speed controller have a BEC circuit? If so it supplies the RX as well so you don't need an RX battery at all. Or doesn't your yacht have any auxiliary motor and ESC? Happy sailing, Cheers Doug 😎 Looking forward to the video of the insulting tape 😁😉 or is that what I keep seeing on the news with Mr T??

Sunk Boat Marker Buoy System by onetenor Captain   Posted: 6 days ago
Oh that salvage job. I wasn't sure if that's what you meant. Yeagh Bad luck that.Then there was Lipos fire. I don't care how much care you take with them I wouldn't have them, even in bags or boxes. Couldn't afford to replace them. RE the brolly and stick shakers they are just interfering busy bodies 😋 Just how much brass do you anticipate anyway? Would there be enough to make a difference?

Naval History - PQ17 by RNinMunich Fleet Admiral!   Posted: 6 days ago
Hi John, no sweat! I'd noticed you were looking at the 'Battery Charging' thread!😉 Your experience mirrors mine, get quality and treat 'em right and they last for yonks. BTW: LiPos should be stored with only ~50% charge! Like the "bob up again" quote 👍 Typically British old chap! Stiff upper lip and all that😉 Cheers Doug 😎 PS I believe Revell have brought out a new Premium version with lots more detail and etch parts. Shucks! I already have the original and have also bought various Great Little Ships etch and cast upgrade sets 🤔

Sea Queen refurbishment by RNinMunich Fleet Admiral!   Posted: 7 days ago
Steer clear of cheapo 'No names' and follow the rules, including charging on a non inflammable surface and/or in a LiPo bag or box and never in the model, and they shouldn't be a problem! Doug

Sea Queen refurbishment by onetenor Captain   Posted: 7 days ago
That's exactly why I don't touch Lipos. You never know the minute.

Sea Queen refurbishment by EAGLE Lieutenant   Posted: 7 days ago
Hi It must be something about this month, charging a lipo all went well, charge finished, felt just warm, tidied up, slipped battery into holder and went my tot, next thing the smoke alarm went off, got it on shovel and outside. First one in our street with fireworks, so scratch one Thames water taxi, and a blo***ng of swbo, all a wright off. Regards Dave 😭😭😭

Lesro Pilot Boat by sigfortunata Sub-Lieutenant   Posted: 8 days ago
[Score: 5/10] 33" Lesro Pilot Boat Twin Propellors (4 Blade 45mm) Direct Drive to a Turnigy 3536 1450kv (4 Blade) Powered by LiPoly (11.1v) 5Amp/h Batteries - Comments: SH bought Lesro Pilot boat kit, ply hull and uppers with detail. Originally ran on 2 x 2S 7.4v Lipos but just tried it on a single 11.1v 3S 5500mah Lipo to reduce weight with a significant improvement in performance

Added extras by Flack Admiral   Posted: 12 days ago
I have an original Aerokits Solent powered by two Torpedo 800 brushed motors controlled by two Mtronics 25 amp brushed speed controllers. I normally use two 8.4 volt 5000 mah NiMh batteries, although I have also used two 11.i volt Lipo's. The shafts are fitted with 50mm three bladed brass propellers. The boat performs nicely on the water. My stanchions are home made from 3mm brass rod with holes drilled to take 2mm chain. The stanchions are 70mm in lenght above the deck with approx 10mm below the deck, the base of the stanchion has a suitable sized brass washer fitted where it passes into the hull, the top of the stanchion is filed to a ronded profile. Shaun

34" Precedent Huntsman by canabus Captain   Posted: 13 days ago
Hi A 3s Lipo 5800mah is about the 450-500 gram weight. Canabus

Added extras by Skydive130 Chief Petty Officer   Posted: 14 days ago
Here are some shots of the main plan and the proposed electronics going into my Solent. My only issue is whether my choice of motors is suitable? I've gone with 2 x 600 brushed motors on 15 inch shafts and 45mm brass props which I purchased before reading the article in Septembers model boats mag. The author in that has gone with 2 x 850's? With my aircraft experience, it's strange going "backwards" with brushed motors instead of the aircraft industry standard of using brushless motors, esc's and lipo battery's! And to cap it all, I've not go any aircraft that could possibly drag let alone lift the 12v 7amp lead acid battery that I've bought for this boat! Any thoughts on motor choice would be appreciated, apart from that I'm good with the electrics. The Mtroniks sound board and speaker is a blast using the Napier diesel sound chip. Another shot shows some of the decor going on, i.e. RNLI decals, numbering for "Douglas Currie", portholes, anchor, handrail stanchions. Other decor, doors, bollards etc coming from Macs soon. Last show shows the finished working radar built from scrap and painted in VW brilliant orange which I believe is a recognised match. One last question, can someone please give me an approx size for the 3mm main deck stanchions which I will fashion from brass tube and soldered eyelets, rope thickness would be helpful too, many thanks

34" Precedent Huntsman by Novagsi0 Sub-Lieutenant   Posted: 15 days ago
Thanks for the detailed reply however I missed your post and had bit the bullet and ordered the 850 motor. I decided to get the lipo safe 50A ESC, and first impression it's a beast of a motor. Maybe phase 2 will be a brushless setup at a later stage. Im hoping a lipo pack will save enough weight to give it some of the offshore PB performance it details in the instructions. :-)

Tear into by Tica Chief Petty Officer   Posted: 15 days ago
[Score: 9/10] 17"/600g Tear into Single Propellor (2 Blade S Type 20mm) Direct Drive to a Turnigy 3800KV 2627 (2 Blade S Type) Powered by LiPoly (7.4v) 2Amp/h Batteries Controlled Through 40a ESC Sky Walker ESC - Comments: A modified toy boat from EBAY, the original electronics has been removed and a BL set-up and 2S LiPo battery has been installed. Quick, "cheap" and fun just like a "Kinder egg" 3 things in one packaged ;-). The set-up do allow it to run on 3S but it's more scream than more power. Short video https://youtu.be/rIzBSnTaxtA

34" Precedent Huntsman by canabus Captain   Posted: 18 days ago
Hi Great work MUM !!! I moved over to brushless motors three years ago. The power of these things are unbelievable. I have a 46" Crash Tender which is getting a L5055C 700KV motor on a 4S 5800mah Lipo battery via 100Amp Hobbyking car ESC. Prop 2 blade CNC 52mm 1.4 pitch. No loaded RPM 10360 against the 850 at 9778 rpm. NO water cooling on the motor and the car ESC has an electric fan, so at low speed you have no cooling problems. The two motors are about the same size. As for battery connectors I use XT60 which I think are better then the Deans. The ESC's are very easy to setup with the program card. I can post my settings which I use on all my boats. I also have the smaller 34" Precedent Huntsman which I am restoring. Canabus

General sailing by RNinMunich Fleet Admiral!   Posted: 21 days ago
Still P-ing down here and likely to do so until Monday 🤔 I'm not expecting more than 20A for my Sea Scout and probably max 2 x 10A for Hotspur, U25 and Southampton. Graf Spee and Belfast are trickier as they have 3 and 4 motors respectively! All the 'tiddlers' will be much less. Will shortly be doing some testing with the watt-meter. Have a few 30 and 60A ESCs in reserve😉 Now about to check out my German (?) LiPos, from Absima in Nuremberg, just up the road here. Cheers Doug 😎

General sailing by Dave M Fleet Admiral!   Posted: 21 days ago
Hi Doug Yes confusion abounds and any help is welcome. The battery is marked 4000Ma, the 8amp relates to the max charge current. I suspect these are of Chinese origin and the info has been corrupted in the translation. The 30C relates to the discharge capability (30xC) C standing for capacity, in this case 4000Ma. As they quote 8amp charge current then you might assume the battery will stand charging at 2x capacity, then again this may be down to translation problems. I don't use to the full capacity, my biggest current draw is from my Sea Queen a full speed drawing about 27 amps on a 2200 Ma 20C 11.1v LiPo. I am aware however that we have several speed merchants amongst our membership and its important that they understand. We have both helped where ESC's/Motors etc have got hot or cooked so I'm quite sure the info needs to be understood and explained, possible more than once. Good point about the charging bags and preferable outside the house in a non flammable area. I did jump but only to clarify. Beautiful sunny day in Sandbach, Cheshire, no doubt it will be wet tomorrow, a sailing day Dave