+ huina battery upgrade ( Lithium-ion 2S3P 7600mA ) / huina 1550 Excavator admin 2020.03.10 huina 1550 Excavator basic battery ni-cd 400mA run time 5 ~ 10 minutes battery upgrade Lithium-ion 18650 2600mA , 2S3P : 7600mA run time : 1 to 2 hours battery : 18650 battery 2600mA PCM : 2S 5A PCM 2S 5A PCM : http://homemadeclub.co.kr/product/detail.html?product_no=772&cate_no=96&display_group=1 2S 5A PCM : https://www.aliexpress.com/item/32984739873.html?spm=a2g0o.productlist.0.0.419a27d83zQC9H... Read More..