RE: External LVC needed.
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10343 this is a transmitter in the vehical to send info back to radio or as above seperate device, spectrum, hitec eagletree all make them Richt
Posted on: 9/7/2012 5:56 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11220539

RE: External LVC needed.
[quote]ORIGINAL: wade7575 I'm looking to get an External LVC for my Boat,I'm running a Seaking 180 Amp ESC and the LVC kick's in all the time,my pack's are fine and are Thuder Power and Turngiy's and have the highest C that each one make's. I seen Novak make's one but it just buzz's or something like then you need to come back to shore and the problem is I'll never hear it,I found this one but they are set at 3.0 Volt's Per-cell and I would like to find something with a CutOff set at 3.2 Volt's Per-Cell. [/quote] With your problems of high current an need for programmablity Look into telemetery, solve all problems at once. some are even reporting to cell phones. Rich
Posted on: 9/6/2012 11:34 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11219704

RE: Safe voltage to fly
Rest assured that this is not going back in an airplane. The thing that bothers me is that there is not a good way to test extension cables and there are some that have been in my planes for five years and could be developing the same problem that this one has. Mo Lata Jerry As said above all cables are placed under max load (1 to 2Amps)an voltage loss in cables measured, also pulling on all connection under load is monitored. You could test all cables in minutes once the jig is setup. Would will find the bad crimp or loose connecter the second it was plugged in. Rich
Posted on: 8/28/2012 8:29 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11208992

RE: Glow engine woes...
Delete RCU error
Posted on: 8/21/2012 8:16 AM by Author "richrd" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11200764

RE: Glow engine woes...
[quote]ORIGINAL: acerc A friend has asked me a question that I can't answer. How about you guy's. The engine is a Magnum 120 4stroke. When started upon removal of the glow plug the rpm's increase. What would cause this? [/quote] I have an OS52FS that does the same thing My question, mine also coming off WOT or landing also has a low idle then RPM slow climbs to a high idle an hard to land been casing it all summer does yours pick any RPM as it idles. rich
Posted on: 8/21/2012 6:49 AM by Author "richrd" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11200758

RE: LiPo rookie
I believe the problem started when you fully charged your pack a left it that way. Most packs swell if left at full charge. I charge my starter LiPO at storage charge 3.8V to 3.9 volts max. for two years now an the 3 cell starts my OS 72 FS just fine. Rich
Posted on: 8/20/2012 10:37 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11199760

RE: Is This a Good Test?
[quote]ORIGINAL: Goldenduff Hello, a little off topic but I hope to get a simple answer so we can get back the Op, just taking advantage of the minds assembled.... Basically I need to add weight for balance. I have a futaba R617fs. Can I put ''y'' leads on every servo and connect say 4 Nicd to the receiver? Am I correct in thinking the voltage will stay the same? Could I use different voltage packs and chemistries? It's a bit messy but need to add weight so might as well be batteries! Cheers [/quote] Yes to Futaba R617 if you look thur the plastic you can see the center red is all bussed "connected together" No to different pack chemistries just a very bad settup to chargeing etc. and never different voltages. It's been discussed over an over about packs in parallel we seem to agree on NI xx chemistries same aged packs identical as possable. Just put in open slot in rec. or Y as you are asking is ok, always two is better than one. A sujjestion maybe to have some 5 cell sub "C's" made up then canfly forever[:)] best weight is batteries Rich
Posted on: 7/27/2012 6:56 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11171103

RE: Is This a Good Test?
I don,t use LIxx as any source in plane's but motor so no experience other than that. I work as electronic instructor, an ex engner [:D] so got tons of diodes i use all the time. MR751 series is great 6 amp. So many to chose from PM me just let me know the setup an i'll tell u what need then go to jamco an get one. I do it to isolate two packs an use MR751 all the time 6 cell NiMH can charge either pack no separate switches. But have since gone to separate switches with built in charge plugs an no diodes with 4 cell using eneloops too. In your case it is a close call using Lixx in parallel does have this concern that NiXX does not have. If it was me an they were in parallel for long time no isolation switches yea I would use diodes because no reason not too. Rich
Posted on: 7/26/2012 2:32 PM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11170351

RE: Is This a Good Test?
[quote]ORIGINAL: guver I think I can easily do this with some similar cells. I'm no EE , so is the actual voltage important or would it be ok to just match the voltage difference? In otherwords could I use 20 volts and 23 volts with some similar cells (30C means fairly low IR) I'd only be able to get you the first inrush of current reading , but not any readings much over a few seconds and won't be able time it in any way because I will not allow any of my cells to go much overcharged. Speaking of that overcharge: If we had a 7 volt 2s hooked to a 3.5 volt 1s of identical capacity would the voltage settle to an exact average of 5.25 volts? [/quote] No the 2S is a voltage source Ri in milli ohms it will dump into the overcharge at a non repeatable rate depentent on seperator failure rate then gasses will build to ??? again each battery will fail different i would guess each test would have different out come an each manufacture battery would change out come greatly. a) the 1 cell outgass an opens b) the 1 cell shorts then 6V dumps until it overheats or goes dead But we are discussing what if a cell shorts or tabs short or wires short a failure is possable so !!!! even if 1 in 1000 odds still ?
Posted on: 7/26/2012 6:12 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11169845

RE: Is This a Good Test?
[quote]ORIGINAL: Flyfast1 [quote]ORIGINAL: guver For anyone to give an estimate or guess the current would you please share at least the size/capacity of the cells? Thanks. Some EE can probably figure this out on paper if the capacity and resistance of the circuit and voltage differential is known. I'll bet one can guess pretty close. I'd be willing to do it with a pair of lipos. That's as close as I can get. [;)] What is the capacity and size and brand of cells? What is the length and size of leads? How many connectors? type? ect? [/quote] Hi Guver, I am thinking of using the Zippy Flightmax 2100mAh 2S1P 30C LiFePo4 Pack from Hobby King (http://www.hobbyking.com/hobbyking/store/__21121__ZIPPY_Flightmax_2100mAh_2S1P_30C_LiFePo4_Pack_USA_Warehouse_.html), since they seem to have similar specifications to the Hangtime hobbies LiFe packs that I have and are only $9.52 each. For leads and connectors I would use 18'' 22 gauge servo extension wires and a heavy duty ultra switch from Hangtime Hobbies, since that's what I plan to use in my plane. -Ed B. [/quote] ?? What iam i missing ?? 2 cells in series is app. 6.6 volts one cell charges to 3.6 v put 6.6 into 3.6 what do you think will happen it will draw what ever current it wants to in overcharge, i would not use this battery again after this test [:@] BTW iam the guy saying if a doide fails YOU did not solder it correctly [:D] they have over 100 years of mean time between failure it will not be the problem,, it is the best solution to this problem, just use 3 times the current needed for diode an never think about it again. Rich
Posted on: 7/25/2012 10:39 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11168717

RE: Thunder AC6 - Software Download here
[quote]ORIGINAL: FarBeyondDriven I installed it on my Win7 X64 bit system, but havent connected the charger yet. However the software installed and loads up fine. I also need to install netframework 4.something . [/quote] Been thier done all that an tech support PM me if you get to link an work Four others have tryed none of us get usb linked Rich
Posted on: 7/19/2012 8:13 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11161107

RE: Thunder AC6 - Software Download here
Did you get this to run on windows 7 USB they say same as t610 but will not run usb ???
Posted on: 7/18/2012 8:28 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11159857

RE: Dynatron Starter Battery Selection ??
[quote]ORIGINAL: 3D Flyer I am still trying to decide if a Life (lithium iron) batt would be best 7 cell, or just get two garden tractor batts at Walmart. The Walmart option would be about 80-100 bucks while the 7 cell Life option would be about $160. The Life batts are safer but don't they have a minimum voltage too? Really confused ... please help. [/quote] True A123 do not have a minimum voltage they also do not puff they also can be stored full charge. they put more power than LiPO only down side is cost cost cost. BUT is the best if can afford it. next best is lawn mower battery Rich
Posted on: 7/5/2012 11:40 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11144132

RE: 12v 7.2Ah Lead Acid - Charging?
[quote]ORIGINAL: achalla I have this charger: <a href=''http://www.optimabatteries.com/optima_products/charger/''>http://www.optimabatteries.com/optima_products/charger/ Can it be used on this type of battery (also a 12V 7.2Ah)? <a href=''http://www.alliedelec.com/search/productdetail.aspx?sku=70141114''>http://www.alliedelec.com/search/productdetail.aspx?sku=70141114 [/quote] Be careful car battery chargers will ruin gel cells, most can not control the current they put out. Rich
Posted on: 7/5/2012 11:31 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11144117

RE: crockpot temperature
Thanks all This mornin it looks a lot better upped to 170f to 180F bearings are cleaner but red thou it turns really smooth so going to see how it runs not going to screw around with piston an pin since all else looks new. btw it' an OS FS70 an it's all shiney now[:D] rich
Posted on: 6/28/2012 7:22 AM by Author "richrd" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11135021

RE: crockpot temperature
OK i see iam to low at 115F i had way to much elbow grease. prestone was used at 100% my bearings are still red must be rust, an the pin still will not pull out of piston so you guys think at 175F the wrist pin may come clean on it's own i cannot scrub it thanks all iam upp the heat[&:]
Posted on: 6/27/2012 1:30 PM by Author "richrd" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11134141

crockpot temperature
has anyone measured the best temperature? first time and the one wifey gave me was broken an only works on high so i put a variable transformer on it adjusted to 110 deg F. After 24 hrs the castor was their still, cleaner but still on muffer etc. I then had to scrub it of with a tooth brush is this the way it works or do i need higher temperature do'nt want to turn dark as some say on high setting it does Thanks rich
Posted on: 6/27/2012 8:22 AM by Author "richrd" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11133759

Thundar AC6 or T610 software
I can not get to run on window 7. other people have said they have problems with the com ports. Has anyone esle got it to work an how, RCDICUSS has been no help Rich
Posted on: 6/5/2012 8:21 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11107219

RE: nicad vs nimh
Ha ha yes i agree Nicad verse Mimh i slowwwly switched to Nimh an had problems. But the problem was me and the batteries i bought. Once i got good batt's .exp..sanyo 1650mAH i love them. and stopped fast charging them etc. etc. they lasted years an still going. BUT! now i love eneloops the x version is high current an no self discharge so replacing now with them. Rich
Posted on: 5/31/2012 12:54 PM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11101489

RE: Another battery question.
+3 Eneloops work so good " 7C" i have remind myself weeks later i must recharge just plug in the futaba wall charger can almost leave it on forever an not worry about over charge with NONE of the liPO problems...a overnite once in a while an good to go if you fly couple couple times a week Rich
Posted on: 5/18/2012 1:41 PM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11086037

RE: Gluing Plywood & PVC
With not much stress then I use GOOP sticks to the curves on pipe. Rich
Posted on: 4/13/2012 2:35 PM by Author "richrd" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=11040637

RE: Charging rates?
Capacity about 130% is what i use so 3300mAH would be 4000mAH from a full discharged battery. So if the peak detection missed you got a stafety valve trying to help. This peak mV value is just a trial and error most start with a low value an if false peak an under charges we bump up an try again, as battery gets older they false peak more. But if a to high a value then battery gets very warm on charge cycle. Just trial an error until it's just right. Then program that in an save.
Posted on: 3/28/2012 9:25 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11018551

RE: Need a Lipo balancer
Here's a thought buy a Watt meter with built in balancer you need both got one fron hobbyparts under $30 Rich
Posted on: 3/26/2012 11:21 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11015775

RE: Charging rates?
[quote]ORIGINAL: Goldenduff Now you've got me confused!  You say .1C to start but then finish with .8c?!.... [/quote] yea SLOW /10 or 0.1C an forget about tel next day, OR FAST at 0.8 C with peak detect at about 8mV see we all can be confused [:D] Rich
Posted on: 3/26/2012 11:12 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11015764

RE: Getting rid of the dreaded 'black wire' syndrome
Everytime ive see it the battery also had salt,, aka white cystrel on the typ. pos terminal. an come to think it was NiCAD's but NiMH are still new when talking about 10 year old batteries.[&:]. So an abuse the out gasses may start an it can not be stoped unless cut out. Rich
Posted on: 3/26/2012 10:58 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11015743

RE: Charging rates?
[quote]ORIGINAL: Goldenduff There is a danger of charging too slow. 0.8 is safe for all batteries. [/quote] Wow really no wonder he is confused. The best is overnite at C/10 exp. 3800mAH /10 charge at 400 mA this is form charge puts all batteries equal disavantage 12 hr charge an can not do peak detection cut off. that is where the 0.8C comes from, most peak detection chargers need .8 to 1.5C charge rate to work comes in at about 8mV to 12mV per cell. See the problem is any charge rate over about 0.5C if forgotten about "left on "will over charge a ruin batteries so they use peak detection to stop charger then as a stafty some will monitor the temperature etc etc.. it story goes on an on. This is why you don't get a a straight answer. [:o] I like 0.8 C myself an set at 8mV on NiMH use 10mV on NiCAD , favorite is zero peak @ 0.5C an then trickle at /10C until i get to it. Rich
Posted on: 3/26/2012 10:41 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11015726

RE: 12v starter Lipo battery?
[quote]ORIGINAL: dirtybird I have a Miller persuader mounted on a standard 12V Sullivan starter. I use 8 A123 batteries on it for 24 volts. It starts my G-62 with gusto, I bet I could start a small Honda with it. BTW I have used 4 A123 batteries to start my motor home when the MH battery was dead. With A123's you don't have to worry about: Fire Storage charge Over discharge Storage temperature Time discharge [/quote] so true my dream too BUT! , i got lots of old LiPo's, no new A123, cost about $40 to do sooooo the best way is free way [&:] rich
Posted on: 2/2/2012 1:52 PM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=10940664

RE: 12v starter Lipo battery?
Do'nt forget guys when we connect up the LiPo an the starter my leads went from 2 feet w/ clips to 1 inch with deads guessing about 2 volts loss in those long cables, more experaments but iam to lazey an it works now[:D] so leave it alone ha ha ha rich
Posted on: 2/2/2012 9:12 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=10940249

RE: 12v starter Lipo battery?
[quote]ORIGINAL: skypiratescotty Hi All OK, so this is what I came up with. I found a NIB vintage Royal Heavy Duty starter for $20. With leads on I hooked it to my 12v Lb battery and it would barely turn my GMS .76, but once I connected it to a 3000mah 14.8v 20c Lipo it will easily crank my Magnum 120 2-stoke. It'll start my buddies YS 170 4-stroke easily too. I have no doubt that this would really give a ton of extra punch to any 12v starter, in fact I'm gonna connect it to my cheapy Tower Hobbies starter just for sh*ts and giggles. I know the battery is a little much but it was on sale for $22 so for under $50 I have a starter that will turn anything as big as I plan on flying. Scotty [/quote] is that a hard pack ??? just a FYI i made a hard case so the battery does,nt get all dented because if a dent gets to a soft pack strange things may happen "fire is one problem" rich
Posted on: 2/1/2012 9:59 AM by Author "richrd" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=10938583

RE: To flap or not to Flap. That is the question
+2 on John i learned on a tele with box very good first plane no flaps its the first plane every spring. then on to the rest nine years now. rich
Posted on: 1/30/2012 9:45 AM by Author "richrd" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=10935151