RE: SD10G BATTERY
Peak does offer a plug adapter that works with Airtronics. And, they can be charged through the port. The ISSUE seems to be two fold.
1. Some chargers work, some don't. So, you'll simply have to try it to be sure yours works.
2. The charge jack is NOT made for high current. Sanwa engineers say no more than 500mah. We've run a little higher, but you cannot safely charge through the transmitter at even 1C (1500mah). Thus, a peak/fast charger is not really compatible with the radio through the charge jack.
You might consider adding a lead to the pack and charging directly to the pack.