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Battery Model: EB-BR760ABE. Battery Capacity: 380mAh. Voltage limit: 5V. Compatible with: Samsung Gear S3 Frontier / Classic Smart Watch EB-BR760A SM-R760 SM-R765S SM-R770 SM-R765 380mAh. Package details: 1 x battery (EB-BR760ABE)

Samsung Galaxy S3 Extended Battery. - 53%. $ 17.18 $. Compatible with - Samsung Gear S3 Frontier SM-R760 - EB-BR760ABE- Rechargeable lithium-ion polymer battery- 380mAh- No memory affect Optional 8 in 1 Phone Repair Kit available here You can count on Discountbattery over 5000 positive customer Reviews check them out!
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Watch Replacement Battery for Samsung Gear S3 Frontier Classic SM R770 R760 R765, EB BR760ABE 3.85V 1.47Wh 380mAh, Smart Watch Lithium Ion Battery with Multi Protections. £986. Get it Monday, 27 Nov - Saturday, 2 Dec. FREE Delivery.
Shop for 430mAh] Replacment Battery for Samsung Gear S3 Frontier Battery, Gear S3 Classic Battery, Gear S3 Replacement Battery SM-R760, R770, R765 EB-BR760ABE GH43-04699A with Professional Repair Tools Kit online at an affordable price in India. Get special offers, deals, discounts & fast delivery options on international shipping with every purchase on Ubuy. B07SKR1M1R
Edit: Forgot to include, before the battery began dying quickly, the watch would last me a good 2 1/2 to 3 days before needing a recharge. You may try a soft reset, or hard reset. It solved similar problems for me. It has died fully for over a day and the issue has not resolved. Have the same idea, suggest you replace the battery.
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gear s3 frontier battery replacement