36V 2.6Ah BOSCH Power Tool Battery Repair and Upgrade to 6.0Ah (Lithium) - YouTube
Bosch 2-Pack 4 Amp-Hour; 4 Amp-Hour Lithium Power Tool Battery Kit (Charger Included) at Lowes.com
Amazon.com: Compatible with Bosch 36 Volt Lithium ion Battery 5.0Ah 5000mAh Suitable for 36V Li-ion Electrical Tools Replaceable Batteries : Health & Household
Li-ion battery Charger For BOSCH 36V Rechargeable Batteries Li-ion Battery For BOSCH BAT810 BAT836 D-70771 Power Tool - AliExpress