A37 Battery Replacement Guide for Oppo A37 & Button Cells

The phrase 'a37 battery' is primarily used as a consumer shorthand rather than an industry standard code. Based on market data, it refers to two distinct product categories: the Oppo A37 smartphone battery (Model BLP615) and, less commonly, a confusion with 377/LR44 button cells used in small electronics.

Product Specification & Grounding

While "A37" is not a standard IEC battery code, it corresponds to the following in the B2B market:

* Primary Reference (Smartphone): The BLP615 is a Lithium-ion Polymer (Li-Po) pack designed for the Oppo A37. It typically offers a 2630 mAh capacity with a nominal voltage of 3.8V Batteriesinaflash Alibaba.

* Common Substitutes (Button Cells): Users searching for "A37" in the context of watches often mean the 377 (SR626SW) Silver Oxide cell (1.55V) or the LR44/AG13 Alkaline cell (1.5V) Neware Bettlink.

Market Trends & Insights

The battery market is undergoing a significant transformation, with global value projected to grow from $177.4B in 2026 to over $550B by 2033 Grandviewresearch.

* Seasonal Demand: Search trends for button cells (LR44/AG13) show a consistent peak in December, driven by holiday toy and gift sales .

* Technological Shifts: Key trends for 2026 include the rise of solid-state batteries and a 14.2% CAGR in lithium-ion demand as consumer electronics become more power-efficient Pem-Motion Idtechex.

* Supply Chain: Sourcing for these parts is heavily concentrated in Shenzhen and Foshan, China, with smartphone replacement batteries (BLP615) averaging $3.10–$3.50/unit in bulk, while button cells are priced as low as $0.01/piece .

The files below provide detailed supplier lists, pricing tiers, and technical comparisons for each category.