Started by FlyinBrian, June 29, 2020, 13:13:26 pm
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Quote from: itsme on June 29, 2020, 15:13:12 pmAccording to most of the LMA friends I have, the 'dragging a battery down' thing is a fallacy. It is fine to use two batteries without any diodes or nonsense. I prefer to use sub C cells, but often room dictates the use of AA cells, of which I have never had a failure. If the batteries you normally use have been reliable, then two batteries seems overkill.I am a great advocate of two switches wired to the battery and Rx to give redundancy, as the switch is the weakest link, and failures are common, but a 5 cell NMH already has a bit of redundancy in that, if one cell goes down, the battery will function as a four cell adequately. Its your choice however, the ultimate being two switches, two batteries and two receivers. The dual switch thing will cost a bit of soldering, and a normal switch. I do that on all my IC models, even the Acrowot. Cheap for peace of mind.
Quote from: FlyinBrian on June 29, 2020, 18:06:23 pmI recall ( I think ) someone called "Red" who used to work for a cell manufacturer used to write about batteries in an online forum c1998 - 2000 and he reckoned s/c was a rare form of failure - occasionally dendrites? may cause a short inside a cell but they were very tiny and the current flow from regular use cleared them. They could build up to the point of damaging the cell if the pack was idle for a long time.
Quote from: JimG on June 29, 2020, 20:56:27 pmThis was Red Scholefield on RC Universe and was a Manager for General Electric and finally Energiser. His information is still available as Red's Battery Clinic. http://www.hangtimes.com/redsbatteryclinic.htmlJim
Quote from: FrankS on June 30, 2020, 08:07:11 amMore expensive than 2 regular mechanical switches, but cheaper than the power management boxes are the electronic switches which have dual battery input, i.e. https://www.esoaringgadgets.co.uk/index.php?main_page=product_info&cPath=46_108&products_id=108
Quote from: FlyinBrian on June 30, 2020, 09:41:33 amI guess that is the Jeti version of Powerbox Sensor switch?
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