Velcell N77H battery is an ideal choice for stock standard and lightly modified passenger vehicles starting engine use. Velcell Batteries are Manufactured in the Hyundai Solite South Korean Manufacturing plant which have been manufacturing world class batteries since the 1970's! The terminals go through a rolling stage after vacuum pressure casting to ensure that there are no pores inside the metal structure and it has excellent strength. Their unique design patent technology at the cover insertion parts fundamentally prevents leakage and discoloration. Advanced rolling technology maximizes service life by reducing corrosion, prevents active material drop-off due to substrate deformation with expanded grip structure and optimizes electrical efficiencies and starting power using low-resistance substrate design. Velcell batteries perform maximum durability is enabled by high-density active materials. Through the application of super-resistance PE separator, excellent starting power even in cold environments is guaranteed.
We ensure by installing an explosion-proof filter on the exhaust port contributes to blocking the inflow of external fire and eliminates possible product rupture due to gas emission during charging and discharging.
Velcell batteries have a double cover structure of gas-liquid separation prevents external leakage and allows an easy maintenance free for the user of the product. Hassle free maintenance free design means simply just install and keep an eye service to service on alternator charge rates. There is no need to check for acid and water levels. 
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