Estry

Battery for Sony MDR-DS6500 MDR-RF865R MDR-RF985R MDR-XB650BT MDR-XB950B1 MDR-XB950BT MDR-ZX330 MDR-ZX330BT NW-A25 NW-A26 NW-A27 NWZ-E463 NWZ-E464 NWZ-S764 1-756-920-21 1-756-920-31 1-756-920-32 BAT1 LIS1427HEPCC LIS1427HNPCC LIS1427HNPCS

Q: How do I confirm this battery fits my device?

Match your device against the Compatible Model list, or compare the part number printed on your original battery. Still unsure? Email us with your battery details or photos and we will help you confirm.

$18.99 USD

~~$0.00 USD~~ $18.99 USD

Sale Sold out

Shipping calculated at checkout.

Title 550mAh

12-Month Warranty30-Day Easy ReturnsShips from US in 48hUN38.3 & ISO9001 Certified

This is a 550mAh 3.7V Li-Polymer replacement battery for Sony MDR-DS6500, MDR-RF865R and more, compatible with battery part numbers 1-756-920-21, 1-756-920-31, 1-756-920-32 and more.

Battery Specifications

Type:	Li-Polymer
Weight:	37.0g
Dimension:	52.3534.13.2mm
Category:	Wireless Headset
Voltage:	3.7V
Rate:	2.04Wh

Compatible Brand

Sony

Compatible Model

MDR-DS6500
MDR-RF865R
MDR-RF985R
MDR-XB650BT
MDR-XB950B1
MDR-XB950BT
MDR-ZX330
MDR-ZX330BT
NW-A25
NW-A26
NW-A27
NWZ-E463
NWZ-E464
NWZ-S764

Compatible Battery Part Number

1-756-920-21
1-756-920-31
1-756-920-32
BAT1
LIS1427HEPCC
LIS1427HNPCC
LIS1427HNPCS

⚠ Safety Warnings

Do not disassemble, puncture or modify the battery.
Never short-circuit the terminals or expose to heat / fire.
Do not mix with different batteries or chargers.
Recycle used batteries at designated collection points.

Why Choose Estry

✓ Grade A Cells — Premium cells with stable discharge and low self-discharge.

✓ Real Capacity — Capacity tested to match or exceed the original battery.

✓ Strict QC — Every battery passes charging/discharging and safety checks.

UN38.3 tested for safe transport. MSDS available upon request. Manufactured in an ISO9001 certified facility.

FAQ

How do I confirm this battery fits my device?

Match your device against the Compatible Model list above, or compare the part number printed on your original battery. Still unsure? Email us with your battery details or photos and we will help you confirm.

What is the warranty policy?

This battery is covered by a 12-month warranty against manufacturing defects, plus 30-day easy returns for peace of mind.

How fast will my order arrive?

In-stock orders ship from our US warehouse within 48 hours on business days.