Mount this handy device somewhere on your model where it can be seen clearly and plug it into a spare channel on your receiver, if no channel is available then use a Y lead. This unit will give you a visual check of your LiPoly or LiFe receiver battery each time you switch on. The easy to read series of LED's will show you whether it is safe to carry on or if the battery requires charging.
Voltage Range: 6.6~7.4V
Lead Length: 320mm
Plug: JR type
It works wonderful.I have a few of these. they all work well. they are great for a long day at the field. keep in mind A123 batteries hold voltage until the bitter end so as soon as you have a drop in voltage its time for the hangar.The LEDs are bright and it's a good voltage display.
However, apart from the middle-positive servo plug it has no reverse voltage protection of any kind, so if you want to measure your battery voltage (and not the UBEC), and you plug it to the balance lead, do make sure you don't plug it the wrong way around.
If you do, it instantly goes bang and the magic smoke comes out.led rx vraiment très bien, je le recommande très facile pour voir l'état de charge de votre accus de réception led très lumineuse. merci HK