BLP691 Replacement Battery Guide for OnePlus 6T & 7

The BLP691 battery is a high-demand replacement part primarily for the OnePlus 6T and the standard OnePlus 7 Alibaba Aliexpress. Market research indicates that while it is a legacy component, there is a steady "aftermarket" demand driven by users looking to extend the life of their devices (typically after 3+ years of use) Reddit.

Product Specifications & Key Features

Capacity: 3610 mAh (Rated) / 3700 mAh (Typical) Batteryelectrohub Gsmok.
Voltage: 3.85 V nominal; 4.4 V charge limit.
Compatibility: Specifically designed for OnePlus 6T (A6010, A6013) and OnePlus 7 Rounded Amazon.
Quality Standards: High-quality versions often feature dual IC protection to prevent overcharging and short circuits Alibaba.

Market Trends & Consumer Insights

Supply Constraints: Genuine OEM batteries are increasingly rare; the market is dominated by third-party "AAA" or "Premium" clones Reddit Ifixit.
Consumer Pain Points: Users frequently report issues with fake capacity labels (e.g., claiming 3700mAh but performing like 3000mAh) and the risk of cracking the rear glass during DIY installation Reddit Youtube.
Price Sensitivity: Wholesale prices on B2B platforms typically range from $3.21 to $10.00 depending on the order volume and "originality" claims Alibaba Alibaba.

Sourcing Recommendations

Research shows that Shenzhen-based manufacturers are the primary global suppliers for these parts. For bulk sourcing, it is recommended to verify if the battery supports Dash Charge protocols, as lower-quality BMS (Battery Management Systems) may disable fast charging Alibaba.

Detailed lists of available products and verified manufacturers can be found in the files below.