Opus BT-C3100 V2.2 Smart Li-ion Battery Charger $23.59 + free s/h (new aliexpress accounts) By admin | March 28, 2017 2:17 pm EST 0 Comment click here enter coupon code Aliexpresspromocode + captcha for $8 off $20+ orders login or create your account you may need to re-enter step #2 add charger to cart (select US for socket standard) final price $23.59 + free shipping