lanny2003
Posts: 211
Joined: 1/24/2005 From: Lawrenceville, GA, USA Status: offline
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quote:
ORIGINAL: crashcrash I smoked my Li-Po last night so I'm done till the weekend. . Note on Li-Po...When it shows it's starting to get weak (slightest loss of power), shut it down and re-charge. That's a $40.00 lesson. crashcrash, Here is info on a battery monitor I use. I dont trust my self to stop before ruining the battery. Lanny ============================ I slowly ruined several battery packs by over discharging them. Costly to say the least! So here is a solution- we took a volt watch (little 3 gram module that you can stick on the side of your 4 in 1) and redesigned it for lipo use. Now I get bright green lights, and as the battery slowly depleates the LED will move down the scale until it hits 9.2 volts when it shows red and then goes very bright red at 9.1 volts. Its easy to see from a long way away both inside and outside. It has 7 LEDs of different colors so you can always know your battery status while flying. It turns out that you can also use the voltwatch type unit to tell you about your battery packs (if you have a weak cell or charging problems) as well as if you are overtemping your battery or drawing too much current (which shortens your battery packs life). It also has provided a means to often detect a main motor that is just about to fail before the failure occurs due to worn out brushes or an overheated and shorted winding. And finally it also serves as a way to check to see if you have too much pitch in your rotor blades resulting in a difficult and inefficient helicoptor that is not flying well. It comes with a pass through JST connector (or no connector if your prefer) and works with any 11.1 volt 3 cell lipo pack. If you interested we now have them for sale! $16.50 per module $3 shipping. Just let us know the connector type, How you would like to pay (Paypal preferred) and where you want it shipped to! Pricing- $16.50 per battery module. 3 day fast shipping is $3.50 per order. Just email us and we will send you a paypal invoice today! Update 27 Jun 06: We just shipped our 100th Battery Monitor- thanks to everyone for making them such a success! We have users in Sweden, UK, Germany and as far away as South American and even Iraq! Good Luck and Happy Flying -SSG Scott ScottHelmann@msn.com (For orders and Paypal account name) or we can invoice you - we just need your paypal/email name. PDF document http://www.rcgroups.com/forums/showatt.php?attachmentid=821125 =======================================
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Lanny http://www.poshpottery.com/airplane.html P-51 Mustang,3DFoamy,ME-109,SPAD Debonair, UltraFly Furious 3D,Formosa
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