Bienvenidos a Helicopteros RC / Radiocontrol
Hello i bought these batteries for my walker v120d02s and this batteries are exact the same size as the original ones but with more mah. I test flew the packs and i can say that they have little bit more punch than the originals but don't expect a gamechanger. They are fine as a replacement for 2 bucks. BUT if you want to use it in the walkera you need to inverse the polarity of the battery pack (take out the pins and reverse them) and you need to solder molex pin on the heli. All in all good value for money!