Many of these small chargers use "switching" power supplies which can generate noise both audible and electrically. I recently purchase a USB charger cord for my cell phone. It make so much electrical noise I can't use it if I want to use the phone plugged into the stereo for music. Real bummer. I bought this "high power" charger since the normal one wouldn't keep the phone charged while playing music and using the built in GPS. Learned this going down to Busses near Natural Bridge. Now going back to the separate GPS and the Zune player for now. Plan to install one of those in dash DVD navigation systems with the flip out screen. Dennis
-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Troy Sent: Monday, July 8, 2013 4:46 PM To: vanagon@GERRY.VANAGON.COM Subject: Battery chargers again for small AA, AAA, etc. A few weeks ago I asked about a battery charger that could be wired to a 12 V battery that would charge smaller AA, AAA, C and D batteries. The one below was recommended, and I ordered that from Amazon. http://www.amazon.com/Tenergy-Advanced-Universal-Charger-TN190-4/dp/B006OSQA LU/ref=pd_cp_e_1 This charger makes a really high-pitched sound, and I noticed a number of other users had commented about it. I think it would drive me nuts in the van, and it seems to make the sound even if batteries are not charging. So, I just sent it back this morning, and now looking for an alternative. This one: http://www.amazon.com/gp/product/B008467K1E/ref=ox_sc_act_title_2ie=UTF8&psc =1&smid=ATVPDKIKX0DER looks promising, but I'm not sure it could be hooked up directly to a car battery. There's no mention, so I'm thinking not. I'm open to suggestions at this point, but I'm steering clear of the Tenergy brand due to the noise, not to mention the door would not open without prying it, pretty cheaply made overall. I do want a unit that can be wired directly in the mains without the use of an inverter. Troy |
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