Amazon.com: New A1189 Laptop Battery for Apple MacBook Pro 17-inch Series A1151 A1212 A1261 A1229 MA458 MA458/A MA458G/A MA458J/A MA092 MA611 MB166B (Small, Silver) : Electronics
Amazon.com: E-YIIVIIL New Replacement Battery A1819 Compatible with Apple MacBook Pro 13' Touch Bar A1706 Late 2016 MLH12LL/A MPXV2LL/A Mid 2017
Hyper Juice: 99Wh Battery Pack with 100W Charging for ~$400
Amazon.com: ROLADA A1819 Laptop Battery for MacBook Pro 13 Inch A1706 Laptop Battery Late 2016 Mid 2017 EMC 3071 EMC 3163 Compatible with MPXV2LL/A MPXV2LL MLH12LL MLH12LL/A Battery A1706 A1819 Battery 49.2Wh : Electronics
Dantona Lithium-Polymer Battery for Apple® MacBook® Pro 17" Laptops NM-A1189 - Best Buy
Amazon.com: E-YIIVIIL New Replacement Battery Compatible with Apple MacBook Pro 13'' A1708 MLL42CH/A MLUQ2CH/A Late 2016 Mid 2017 Version A1713 Internal Battery + Tools : Electronics
Crowdfunding campaign aims to create the perfect battery-pack for MacBook/MacBook Pro [Video] - 9to5Mac
NewerTech NuPower Battery for MacBook Pro 15", NWTBAP15MBP56RS
Amazon.com: Zosam New Upgrade A1175 Laptop Battery for MacBook Pro 15 inch A1175 A1260 A1150 A1211 A1226 for (2006 2007 2008 Version) Apple MacBook pro Battery MA348/A MA348G / A MA466LLA -10.8V 5800mah : Electronics