Type: Lithium ion.
Capacity: 3500mAh, increased 25% capacity than the original. RoHS and CE Certificated.
Designed for: Big Jambox speaker J2011-03-US.
Safety: Built in high-precision voltage detection circuit and delay circuit, make sure the battery run stable and perfectly.
You Can Get: 1 pc Rapthor replacement battery ( speaker not included) and free screwdriver tool
Easy to Install: follow the user manual instruction and complete the install by simple several steps