UNO Same day Shipping. The EEL Pro 36v EbikE Battery 3619004 is a high-quality lithium-ion battery designed for power tools and small electric vehicles. With a voltage of 36V, this UNO brand battery provides reliable and long-lasting power for your tools and equipment. Whether you are a professional mechanic or a DIY enthusiast, this battery is a great addition to your workshop or garden shed, ensuring you have the power you need to get the job done efficiently and effectively.