This combo includes our #2620 complete charging cable assembly with stepped 4/5mm bullets (to charge both 4mm and 5 mm batteries), and #2214 1s/2s switch extension that enables you to charge both 1S and 2S packs by simply moving a switch!1S - move the switch towards the charger (position 1), use only the positive/negative leads for a 1S battery and you're setup for 1S charging. 2S - move the switch towards you (position 2), use the positive/negative leads and the balance lead and you're setup for 2S charging.
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