3.7V, 200mAh, lithium-polymer
It depends on how the necklace and its battery have been maintained, this battery usually lasts between 2 and 4 years.
It charges from 0% to 100% in about 2 hours.
We do not recommend that the user try to change the battery in this model.
If it is for a necklace sold by Collares Electrónicos ¡Y Más! We do not charge to replace the battery. If it has not been sold by Electronic Necklaces And More! We charge € 5 for this service.
Normally in stock.