Post by Gavin on Jan 11, 2006 23:27:13 GMT
I decided to bite the bullet and get a new battery today for my Baotian 50cc scooter.
The information provided below is to give users an idea of what voltages to expect with a new battery, so that they can compare those voltages with suspect batteries.
The battery make is Euroglobe, the type YTX5L-BS (it says on box, made by Yuasa Taiwan, who seem to make good batteries).
Cost £21.98. inclusive.
When I collected the battery, the man in the shop offered to fill the battery for me with the supplied acid pack, so I let him fill it, although there was adequate instructions supplied with the battery. I asked him about charging the battery before using it, and he said that it should be OK to use after 90 minutes without charging. After 90 minutes, the voltage had risen to 12.5v, but as I thought this seemed a bit low, and I also wanted to test my new Optimate3 charger, I decided to charge the battery anyway. It took about 3.5 hours before the charger reported that the battery was full, (at stated 0.6amp charge). Immediately after charging, the voltage read 13.5v, but dropped back to 13.1v after an hour, which I was expecting. After 6 hours standing, the reading is now 12.9v, and it seems to be reasonably stable at that.
I think it states in the Baotian manual, not to use the electric start if the voltage drops below 12.3v, so it seems that the 'starting' voltage is between 12.3v and 13v. This might help anyone who has starting problems and suspects the battery.
I have not connected the battery to the scooter yet, but at least I know that I will be starting off with a good and fully charged battery.
The information provided below is to give users an idea of what voltages to expect with a new battery, so that they can compare those voltages with suspect batteries.
The battery make is Euroglobe, the type YTX5L-BS (it says on box, made by Yuasa Taiwan, who seem to make good batteries).
Cost £21.98. inclusive.
When I collected the battery, the man in the shop offered to fill the battery for me with the supplied acid pack, so I let him fill it, although there was adequate instructions supplied with the battery. I asked him about charging the battery before using it, and he said that it should be OK to use after 90 minutes without charging. After 90 minutes, the voltage had risen to 12.5v, but as I thought this seemed a bit low, and I also wanted to test my new Optimate3 charger, I decided to charge the battery anyway. It took about 3.5 hours before the charger reported that the battery was full, (at stated 0.6amp charge). Immediately after charging, the voltage read 13.5v, but dropped back to 13.1v after an hour, which I was expecting. After 6 hours standing, the reading is now 12.9v, and it seems to be reasonably stable at that.
I think it states in the Baotian manual, not to use the electric start if the voltage drops below 12.3v, so it seems that the 'starting' voltage is between 12.3v and 13v. This might help anyone who has starting problems and suspects the battery.
I have not connected the battery to the scooter yet, but at least I know that I will be starting off with a good and fully charged battery.
