[VintageMA]

I was a little concerned when I first bought the React because there was a lot of forum activity regarding problems with the springs in the steering wheel - but I have 2 Reacts right now and haven't had a single problem.

It uses a 4-cell NiMH pack - rechargeable. There is a mini USB port under the battery try that you can use to hook it up to the computer to charge the battery and connect it to the software (it shows up on the PC like a tiny flash drive). The software on the React has peak charging software built right in that comes up the second you connect a power source to the USB port. I find pc USB charging to be very slow, so I just plug it into my Blackberry USB charger (rated at 500mA) and get a nice charge to the radio in about 3-6 hours. I simply got 2 NiMH 4-cell AA packs from cheapbatterypacks.com with the Futaba mini-J connector and it works fine (pretty much an standard mini female connector will work).

As far as the sensors go, the telemetry is very similar to that in the Spectrum radios - it's just not an add-on and it built into the controller. There are probes for speed, temperature and voltage and you can plug-in multiple types of one particular sensor and the radio automatically picks it up during binding (oh yeah - binding is a button and not a stupid extra plug). For testing new setups I've run a temp sensor on the ESC, one on the motor, and a votlage sensor at the battery pack. Set an alarm for whatever high/low thresholds you want for temp and voltage and your hand gets buzzed when it's exceeded.

I'm attaching a few snapshots from the Nomadio software to take a look at.