The Ultimate Lightweight Powerhouse. The AOKLY H7-80 Sodium-Ion (Na+) 12V battery is a bleeding-edge, ultra-lightweight upgrade for your luxury or performance vehicle. Weighing up to 60% less than traditional heavy lead-acid batteries, this massive 820Wh powerhouse delivers explosive cranking power, an ultra-long lifespan of over 3000 cycles, and absolute safety with zero risk of thermal runaway. Equipped with an integrated smart Battery Management System (BMS), it’s a premium 'drop-in' replacement for larger European vehicles requiring an H7 / LN4 footprint (such as the BMW 5/7 Series, Audi A6/Q7, and Porsche Cayenne). Enjoy completely transparent pricing and professional installation at TyresOnline.sg.