I’ve only used the lights a few times and haven’t had to recharge them yet. I figured even with recharging it’s still more cost effective than batteries. The link to the lights I bought are below. Keep in mind that if you don’t have the peg spacer bar I have no idea where else on the bike they can be mounted. I haven’t thought about turn signals since when I street ride I always stay to the right and in the bike lanes if they’re there and only mix into traffic when I have to. What are the turning signals you’re looking at? Can you link them?

DON PEREGRINO Powerful LED Bike Tail Light 110 Lu... https://www.amazon.com/dp/B07XH1NVGR/ref=cm_sw_r_sms_api_glt_fabc_69VQ9V29M47YEH6TT5M9?_encoding=UTF8&psc=1