Battery safety
We’ve tested Charlie’s battery to UL 1973, the standard for stationary battery packs. Charlie’s battery is a UL Recognized Component to UL 1973.
Transport Safety
The battery meets UN 38.3 requirements, ensuring it is safe for transport and shipping.
Fire Safety: To validate the safety of Charlie’s battery design, we subjected it to the UL 9540A test method, which evaluates fire propagation in battery energy storage systems and involves tests of the cell, battery, and full product.
Range Certification: Charlie has passed the applicable protection and performance safety tests of the existing UL 858 standard with a qualified product safety testing lab in UL’s Data Acceptance Program, and also passed the applicable battery safety tests.
We offer a full 2 year manufacturer's warranty on Charlie — twice the industry standard.
The battery is warrantied for 5 years.
We will repair or replace any defective parts or parts that fail from normal wear and tear. Read our warranty policy to see what's covered.