RAVPower via Amazon has the RAVPower 2 x LP-E10 Batteries with Micro USB Charger for only $7.58, after you select a $5 coupon savings checkbox.
This is a great deal for 2 LP-E10 batteries (3rd party) with a Micro USB Charger, these batteries fit the EOS T3, T5, T6, and T7.
This is sold by RAVPower Direct and Fulfilled by Amazon.