SpectraLink RS657 Replacement Battery Sourcing from BT Kenwood NX-3320

Kenwood NX-3320

Vertex Standard FNB-V57

SKU Capacity Chemistry Voltage Battery Type Dimensions Condition Price TWMO2-LI2300#A 2300mAh Li-ion 7

SKU Capacity Chemistry Voltage Dimensions Condition Price TWKW2-LI1800#L 1800mAh Li-ion 7

Vertex Standard FNB-83

SpectraLink RS657 Replacement Battery Sourcing from BT Kenwood NX-3320This is a replacement compatible battery for SpectraLink RS657 which comes with a 30 days money back guarantee and 12 months warranty. Note: This battery doesn't support Spectralink 8440. Battery Features Made with superior quality battery cells. Uses high impact ABS and Poly carbonate plastic for strength. Built to perform under standard operating conditions. Guaranteed to perform at 80% of original capacity for 12 months. Compatible to manufacturer