There's a guy in www.robotreviews.com/chat/ selling Li-ion batteries for 500 series. The problem may be in shipping it to Singapore.
I've purchase a non-original battery from Amazon. There are a number of sellers. Checkout their shipping rates too.
Confirmed from Seller and Borderlinx that this can be shipped. (Keep fingers crossed first)
I am also looking into building one with higher capacity. The batteries can also be bought from Amazon. Will need to salvage the connector and thermal sensor from my old battery first.
I've purchase a non-original battery from Amazon. There are a number of sellers. Checkout their shipping rates too.
Confirmed from Seller and Borderlinx that this can be shipped. (Keep fingers crossed first)
I am also looking into building one with higher capacity. The batteries can also be bought from Amazon. Will need to salvage the connector and thermal sensor from my old battery first.