18650 charging system integration. · Indication LED (green means full of red means · Charging) Charge and work can be done at the same time. · 1 switch control power supply. · 1 SMT connector available for sleep mode · 1 additional LED programmable (with gpio16 [do]) · 0.5a charge current 1A output · Overcharge protection · Over discharge protection · 10 digital pin read / write / interrupt / PWM / I2C / line support (except D0) · 1 analog input to be careful + -. If the battery is in the wrong direction, the charging chip will be destroyed. *Belum termasuk baterai 18650 *Baterai 18650 dijual terpisah ada di etalase kami check pencarian toko art techno / wishlist produk ini terimakasih