QUOTE(ZenGTMM @ Dec 17 2011, 01:51 AM)
I dont get u on this part..
I put gear into reverse and floor it loh..
ok it means the battery lief span will effect by the temperature, normally at factory the only proccess will creat heat in the battery was during charging so the fatory charger will equipt with temperature sensor to din in the battery, the charger are industrial type and not normal charger seen in the tyer shop, it was a huge panel and all hook up to a computer monitoring system, there are program to set in the software and each time to start a charging program user have to choose the suitable for the specific capacity battery. inside ther charging program few item has to be set the value of min and max and also the relative action, charging/dischrging voltage, charing/discharging ampere, temperature, charging/diacharging time, interval time. so let say a battery charge voltage target is 14.5V (min13.5V max 15V)of duration 10hr target ampere 15A (min 10A max 16A), temperature (max 80) so when proccess start it will monitor the data according to the program specifying.
normally the JIS standrad will use 80C as ambiant temperature which means the battery must able to work in normal/ healty condition at temp of 80C. so the factory warrenty issued also base on the battery are working in the 80C environment (abut 1 year).
Beside the temperatuer affect the battery life span the material use also the important part. the battery made by pasting the oxide to the lead amtimony grid, the stremgth of the grid and the past that stick to the grid also important, if car running on the bumpy road offentn and the material use are not strength enough, the battery will also kong very fast.
there are still many story about baterry ........cannot finish........
Added on December 17, 2011, 2:32 amQUOTE(ZenGTMM @ Dec 17 2011, 02:11 AM)
No leh.. Have to become entrepreneur urself.. But b4 open up any business is to test ur own product first.. If not good then dont sell it.. Honesty is the best policy.. If im purely looking for making income then i wont bother testing the battery also.. Just take and sell only..

doing battery busniess how can missout sam and me, we are at least came out from the branded battery co. (joke only)
This post has been edited by ngeo88: Dec 17 2011, 02:32 AM