Maxpro Battery Monitor was developed by Maxpro Inc. in Jun 2006, it can be monitor your battery status in use, usually the voltage of battery will drop when it is using, so the Maxpro Battery Monitor will monitor the voltage and report the result to you with light and buzzer. Even use this monitor you can find any problems in your heli or airplane, it can help you to find your heli or airplane whether is health or not.  Very light weight and easy to install; just plug into your balance plug of your battery.  Note: this device use same balance plug as Align/E-flite/E-Sky/MegaPower batteries.  If you use Hyperion or Thunder Power or Flight power or Outrage XP packs, use the conversion wire. Best investment for your lipo battery.

Model Blue light shines Blue light flashs Red light shines Red light flashs & Beep 3S 11.1v up 11.1v ~ 10.2v 10.2v ~ 9.9v below 9.9v >> Maxpro Battery Monitor User Manual

Current Reviews: 6

Submited By: Kelly on 05/21/2009 I have one on my HBK2. The lights are kind of hard to see on a sunny day. If you fly till the buzzer go off the batteries are below the 20% mark, not good for your lipos. If the buzzer went off sooner it would be a great product.

Submited By: russell on 04/02/2009 awsame its super small and light the lights very verrrrrrry bright the buzzers is very very loud works soo good

Submited By: russell on 01/20/2009 works awsame its super samll and light the lights bright the buzzers is loud i like how it beeps when you plug the battery in i hard wired it to the esc better that way and the price 9 dollars well save u BIG MONEY!!!!!!!!!!

Submited By: Adam on 01/08/2009 I bought for my belt cp. As for Chris's review not sure how his came soldered already. I had to go out and buy a solder iron to put the connector on. That is why I give four stars. I love HeliDirect.

Submited By: Dennis on 12/21/2008 I have this on my Belt CP's. Bright enough to see from a good distance and load enough to hear while flying. You have the option to solder to the ESC or solder to the connector for the balancing leads. All in all, a good product for a low price. I will be purchasing the 2S version for my Lama and FP.

Submited By: Chris on 08/25/2008 I use this battery monitor on my eSky Belt CP. The buzzer is loud enough to hear while flying and the LED's are bright and easy to see. The connector plugs directly into the balancing lead so there is nothing to soldier. I would purchase this Lipo alarm again for another helicopter.

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