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Volt and Amp gauge

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Pops

Well-Known Member
Joined
Jan 1, 2013
Messages
13,225
Location
USA.
Just received the March 2019 issue of Kitplanes. Jim Weir has a good article on a Volt and Amp gauge that I have been using since about 2008. Low cost and works very good. The Amp gauge is a load gauge. This is perfect for an airplane that does not have an electric system but a small battery for a GPS and a handheld radio, etc, because you always know the load on the battery. Also very good for a wood airplane where you can't use the airframe for ground. Read the article and you will understand . I used the model that is up to 10 amp on the SSSC, but on the JMR I am using the model that uses a shunt and it good for up to 50 amp.
For a battery I have been using a 12 v, 7 amp model airplane starting battery (5 lbs) from Tower Hobbies and put the wall wart battery charger on when the voltage gets down to 10.5 volts. Maybe 10+ hours of flying using the radio, gps, electric oil temp gauge and electric elevator trim.

https://www.ebay.com/itm/Mini-DC-10...m=322951112374&_trksid=p2047675.c100005.m1851


https://www.ebay.com/itm/Mini-DC-100V-10A-Digital-Voltmeter-Ammeter-Blue-Red-LED-Voltage-Amp-Meter-Gauge/322951112374?_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D1%26asc%3D20131003132420%26meid%3D98575fc3ca30492db7710c5f7dc06686%26pid%3D100005%26rk%3D4%26rkt%3D12%26mehot%3Dpp%26sd%3D163203244211%26itm%3D322951112374&_trksid=p2047675.c100005.m1851


 

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