MRC SuperBrain 969 and LiPos
03-09-2004, 11:35 AM
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MRC SuperBrain 969 and LiPos
I bought this charger because it specifically states in can safely charge lithium ion/polymer batteries up to 8 cells. Well, I thought I followed the directions to a T, but on the third discharge/charge sequence I fried my 2 cell LiPo. The charger is a great charger for everything else, but I still want to charge LiPos with it. I haven't bought another Lipo because of the cost. Ok here is my question!
How can I safely use "this charger" to charge LiPos? Can I hook up resistors or diodes in a fashion after the charger to safely charge these? Is there an INEXPENSIVE device I can use along with it?
I want to fly electric, but I can't keep buying chargers nor do I want to spend a couple of hundred dollars on the best. I feel MRC should be liable for what they stated and if it will not charge LiPos safely, they should replace it with one that will.
How can I safely use "this charger" to charge LiPos? Can I hook up resistors or diodes in a fashion after the charger to safely charge these? Is there an INEXPENSIVE device I can use along with it?
I want to fly electric, but I can't keep buying chargers nor do I want to spend a couple of hundred dollars on the best. I feel MRC should be liable for what they stated and if it will not charge LiPos safely, they should replace it with one that will.
03-09-2004, 02:48 PM
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RE: MRC SuperBrain 969 and LiPos
I bought my son one of these chargers and he loves it but it does state in directions that you cannot leave LiPos on charge without monitoring temperature of batteries..
03-09-2004, 03:27 PM
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RE: MRC SuperBrain 969 and LiPos
You guys should read the following thread in another forum:
http://www.rcgroups.com/forums/showt...hreadid=156352
Basically the MRC charger is unsafe for lithiums as it is still functioning as a peak detector, but Lipos don't work like that. The new Astro 109 is the one to get for all lipo needs. Either that or a dedicated Lipo charger from FMA for small packs
Lipos are great, but I don't want to risk a fire. The second best option is to have two chargers and get a number of NIMH packs. Fly one while the other two are chraging.
Yes there is a steeper learning curve with electrics and each makes his fair share of mistakes
Hope this Helps,
Terry
http://www.rcgroups.com/forums/showt...hreadid=156352
Basically the MRC charger is unsafe for lithiums as it is still functioning as a peak detector, but Lipos don't work like that. The new Astro 109 is the one to get for all lipo needs. Either that or a dedicated Lipo charger from FMA for small packs
Lipos are great, but I don't want to risk a fire. The second best option is to have two chargers and get a number of NIMH packs. Fly one while the other two are chraging.
Yes there is a steeper learning curve with electrics and each makes his fair share of mistakes
Hope this Helps,
Terry
