Bt51 Batteries
Overview
Product sourcing insights & recommendations
The BT51 battery is a legacy lithium-ion power cell primarily used in Motorola mobile devices from the mid-to-late 2000s, including the W-series, V-series flip phones, and ROKR/KRZR lines BatteryworldonlineInterlightus.
Product Specifications & Compatibility
* Voltage: 3.7V (Standard) Interlightus.
* Capacity: Ranges from 850mAh to 940mAh SimplecellshopBatteryworldonline.
* Dimensions: Approximately 0.06 lbs in weight; designed for a precision fit in compact Motorola handsets Simplecellshop.
* Compatible Models: Supports over 40 legacy devices, most notably the Motorola W220, W385, V360, KRZR K1M, and ROKR E2 BatteryworldonlineSimplecellshop.
Market Trends & Insights (2026)
* Legacy Market Status: The BT51 has transitioned from a mainstream consumer product to a niche replacement part. It is no longer in mass production for new devices and is primarily sold as "New Old Stock" (NOS) or by third-party aftermarket manufacturers EbayTomsguide.
* Supply Dynamics: While major B2B suppliers focus on modern smartphone batteries (iPhone/Samsung), specialized manufacturers like Dongguan Lineng Electronic Technology still offer custom production capabilities for these older Li-ion form factors to support the repair and refurbishing markets Alibaba.
* Broader Battery Trends: The global battery market is shifting toward high-capacity EV and energy storage solutions, with the mobile battery sector growing at a modest 5.2% CAGR ThebusinessresearchcompanyGrandviewresearch. For legacy parts like the BT51, demand is driven by collectors, vintage tech enthusiasts, and regional markets where older handsets remain in use.
* Pricing: Replacement units are currently priced between $6.99 and $15.00 depending on the source and condition (OEM vs. aftermarket) SimplecellshopInterlightus.
Motorola Bt51 Replacement Battery 3.7v 850mah 910mah
Products · 2 lists
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Sources & References
24 sources cited · Verified industry data & reports
Motorola Standard Battery BT51 910 mAh 3.7V ROKR Z6m ...
eBay
It is a black battery made of rigid plastic with a matte finish. The battery has a capacity of 750 mAh and a voltage of 3.7V with only one port. with a cable ...
Battery for BT50 BT51 For Motorola w260 w315 w385 w395
batteryworldonline.com
BT51 Replacement Battery – 850mAh 3.7V Li-Ion Restore. High-Quality Lithium-Ion Cell Technology ✅ 850mAh Capacity for Reliable Daily Performance ✅ No Memory ...
Motorola BT51 Replacement Battery 3.7V 850mAh - Interlight
interlightus.com
Voltage: 3.7V Capacity: 850mAh Compatible with Motorola devices requiring a BT51 battery.
Motorola Bt51 New Standard Oem Battery For ...
Walmart
3000mAh GH43-04680A EB-BA520ABE Battery for Samsung SM-A520S SM-A520L Galaxy A5 2017 SM-A520F/DS SM-A520K SM-A520F. Shipping, arrives in 3+ days ...
compatible old bt51 batteries?
Tom's Guide Forum
Motorola BT51 - cellular phone battery; this is an old cellphone. looks like it will fit. it has a lifetime warranty;
Bt51 Motorola Battery
Amazon.com
bt51 motorola battery. 710mAh Li-ion High Capacity Battery with Safety IC – Compatible with BR50 Lithium Ion 5-Pack)