7.4V li-ion battery pack--made of SANYO cell

li-ion battery pack , specificationItemCriterion1.Battery pack specification1.1 Assembled type2 series and 1 paralle1.2 Nominal capacity2200mAH1.3 Nominal voltage7.4V1.4 Standard Charge methodconstant current then constant voltageCC/CV1.5 Charge voltageMAX8.4V1.6 Charge current1.1A-recommended, 2.2A-Max.1.7 Charge time3Hrs-recommended,2Hrs-Min.1.8 Output voltage 1 7.4V-nominal, 8.4V-peak, 4.6V-cut off1.9 Output voltage 2 7.0-8.0V-shipment1.10 Discharge current1A-nominal, 4A-Max.1.11 Charge temperature0- +451.12 Discharge temperature-10- +601.13 Storage temperature-10- +452.Battery cell specification2.1 Brand/ModelSANYO,Made in japan./Li-ion 186502.2 Nominal capacity/voltage2200mAH/3.7V2.3 Size18.5*65we have skilled and well-experienced R&D team to design products to meet customers requirement.