What battery is recommended for this kit? This kit is 24V, you need two 12V batteries, (lead acid or lithium), or one 24V battery. After they are linked together, the recommended capacity >12AH, working current need less than 20A. Does the kit include batteries? No, the kit includes all the parts you need except batteries to convert the bike into electric bike.
Where should I mount the batteries? We do not provide the battery box. But you can install it above the rear wheel on rear rack, or even make a box(need some DIY skills). You can design whether the batteries can take out or hard wired. Is the kit include a English user manual?