Electronics - NiMH - 2 - 6 - 4 - 7
Battery, Series 3 Power Cell (NiMH, 7-C hump, 8.4V), TRX2941X
SKU: TRX2941X
Retail price: €41.95
Where to buy? 
Battery, Series 4 Power Cell 4200 mAh (NiMH, 7-C flat, 8.4V) ID, TRX2950X
SKU: TRX2950X
Retail price: €61.95
Where to buy? Electronics - NiMH - 2 - 6 - 4 - 7
