2S 4000mah 40A | 7.2V Li-Ion Battery Pack

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2S 4000 mAh 40A Lion Battery Pack

Roaring power in a delicious compact package for your RC transmitter.

Made with love and high quality Samsung 4000mah 40A 21700 Li-Ion cells.


This battery pack is specially made for remote controllers as the Radiomaster TX16S, for transmitter modules and any other transmitter in the range of 8 Volts.

Keep in mind that they are the only connection between you and your flying object, so always keep an eye on the battery gauge on your transmitters monitor.

Charge the battery before every flight session and remember to set a fail-safe on your transmitter or flight controller.

Keep your battery not lower than 3.0 V/cell: this will assure your Li-Ion battery pack to be healthy for a long long time.

Select specific Li-Ion program on your balancing charger and charge at no more than 2.0 A.

An order containing this product may need 2 up to 5 business days to be fulfilled.


  • Standard connector: XT30 or XT60
  • Nominal voltage/cell: 3.6v
  • Nominal 2S voltage: 7.2v
  • Nominal capacity: 4000mah
  • Weight: 149.8g
  • Dimensions mm (W x L x H): 43 x 70 x 22

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  • 5
    Li-Ion battery 4000mah 30A

    Posted by Manuele Volpini on 28th Jun 2020

    Ottima batteria per la mia nuova radio. Entra perfettamente nell'alloggio. Arrivata in tempi brevissimi. Funziona perfettamente. Molto consiglitissima. Unica nota la lipo sul sito e' dichiarata 40A ma in realtà sono 30A. Solo una precisazione,cmq perfetta.