The Effective battery thermal management is fundamental to ensuring both the performance and durability of small commercial electric vehicles. This study investigates advanced methods for maximizing energy efficiency, extending driving range, shortening charging durations, and lowering costs by employing insulation and thermoelectric cooling technologies. India's diverse and often extreme climatic conditions-ranging from intense summer heat to cold winters-significantly affect the thermal management of electric vehicle (EV) batteries. Also in small commercial vehicle segment uncontrolled operation condition (loading & off-road driving) of vehicle is common in India which leads to higher average C rate from battery implies need active battery cooling. Keeping batteries within their optimal temperature range is vital for maintaining their efficiency, safety, and service life. Advanced thermal insulating materials stabilize battery temperatures by minimizing heat gain and external fluctuations, enhancing performance and reducing cooling system workload, thereby improving energy efficiency. The incorporation of thermoelectric cooling systems (TECs) provides accurate temperature regulation by leveraging the thermoelectric effect to transfer heat away from battery cells with the help of a thermal energy storage system. This combination of TECs and phase change material (PCM)-based thermal energy storage offers a cost-effective solution tailored for the small commercial vehicle (SCV) sector. In the proposed approach, traditional refrigerant-based cooling is replaced by TEC coolers paired with a PCM thermal energy storage (TES) tank. While charging, the TEC coolers draw power from the external grid to store thermal energy in the TES tank. During driving, the battery temperature is maintained using the stored thermal energy, eliminating power consumption from the high-voltage battery. Additionally, in colder ambient conditions, battery heating is achieved by reversing the current polarity of the same TEC modules. The major reason to propose thermos-electric battery cooling technology for SCV EV is low heat load from battery i.e around 0.3kW to 0.6kW, which indicates need of active battery cooling but traditional vapour compression refrigeration system is costlier for SCV EV application, Along with this TEC battery thermal management system have add in benefits such as non-refrigerant system, no moving part implies no NVH issue and Eco-friendly system with high component life. This paper's key contribution is a compact, cost-effective vehicle solution using a heat pipe and heat sink to remove the TEC chip's hot side heat while maintaining performance parity and identical weight compared to traditional battery thermal management systems. In conclusion, with integration of these two strategy for SCV EV's without cabin air conditioning system results measurable improvement in range i.e by 4-5km as well as reduction in overall system cost by 20-30% with achieving same battery thermal management requirements target.