Airtronics SPECTRUM-VISION battery inserts 9.6 volt

9.6 volt Replacement rechargeable battery Insert for AIRTRONICS SPECTRUM and VISION Tx packs. Fits inside the black plastic casing. Choose from 700mAh NiCd, 1100mAh NiCd, 1650mAh NiMH, 2000mAh eneloop NiMH , 2500mAh NiMH, 2550mAh eneloop Pro NiMH, 2700mAh NiMH.  You will need to solder the wires inside your battery casing to the new insert (typically Red wire to Positive tab, and Black wire to the Negative tab).

These inserts are made to order.  The 2000Ah and 2550mAh eneloop versions are PRE-CHARGED & READY TO USE.  They retain their charge for over a year when not in use!