Online store: AliExpress
100% AAA батарея 3000mAh 1,5 V Щелочная AAA аккумуляторная батарея для дистанционного управления игрушечный светильник Batery
1.54 USD
This batteries have everything to being very good, mainly due to being 1.5 Volts. I have bought three batches from seller but, unfortunately, despite of several warnings, he insisted on using a non reliable carrier. So, I will never really know if they are good and durable.