Suneom's battery have 3 series:

SH series: Designed for high rate discharge requirements, compared with the conventional models, it give 25% more wattage for a short duration of discharge. Designed service life is 5 years.

SL series: Designed to longer life requirement, it give 10 years life performance at 20 Centigrade ambient temperature.

GEL series: Colloid battery design to longer life reqirement, it gives 5~7years life performance.