Amazon.com : Kastar GOPRO3 Battery (3-Pack) and Charger Kit for GoPro HD HERO3, HERO3+, AHDBT-302 Work with GoPro AHDBT-201, AHDBT-301, AHDBT-302 : Electronics
Hands-on with the GoPro Hero 3+ Black Edition: Digital Photography Review
Amazon.com : GoPro Battery BacPac for Hero3+ : Electronics
Brunton All Day GoPro Hero 3+ Battery Pack Review - Deelip Menezes
1800mAh 2-Pack Replacement Batteries and 3-Channel USB Storage Quick Charger for Hero 9 Black Hero 10, Fully Compatible with Gopro Hero 9/10 Battery and Charger (1800mAh) - Walmart.com
GoPro HERO3 Battery & Charger Recommendations
Gopro Hero serial Replacement Batteries (3 Pack) 1220mAh with – ENEGON
Watson Lithium-Ion Battery Pack for HERO3 & HERO3+ B-2302 B&H
Brunton ALL DAY 2.0 Extended Battery Back F-ALLDAY2.0-BK B&H
Wasabi Power Battery for GoPro Hero3, Hero3+ (2-Pack) and Dual Charger – JG Superstore
Go Pro Hero 3 Dual Battery Charger | Gopro Hero 3 Original Batteries - Original Gopro - Aliexpress