SR626 Battery · Silver Oxide 1.55V

Tiny 6.8 mm cell for quartz watches - SR626 / AG4 / 377 crossover.

Specifications

Voltage
1.55V
Diameter
6.8 mm
Thickness
2.6 mm
Capacity
27 mAh
Weight
0.3 g
Typical capacity — reference value.
  • UL
  • UN38.3
  • CE
  • RoHS
  • ISO9001
SR626 Silver Oxide battery
SR626 · Silver Oxide 1.55V · Ø6.8 × 2.6 mm

An SR626 battery replacement is a 6.8 x 2.6 mm cell with the SR626SW / AG4 crossover - same cell by different names. The stamped number is the safest guide.

For watch repair channels we supply carded and bulk formats with a cross-reference list in every export carton.

Where it is used

  • Watches
  • Small electronics

Equivalent & Cross-Reference

  • AG4
  • 377
  • SG4

Packing quantities are standard; other formats on request.

SR626 vs AG4 / 377

SR626, AG4 and 377 are the same 6.8 × 2.6 mm footprint. Our cells carry the crossover and run at 1.55V for quartz watches.

Wholesale & Custom Supply

Watch-size battery supply in carded and bulk formats, with cross-reference documentation for watch repair channels.

EU Regulation (EU) 2023/1542

Battery Information for the EU Market

For each model we publish its full battery information file under Regulation (EU) 2023/1542 — chemistry system, performance data, hazardous substances statement and related documents.

General Information

Battery Name
Alkaline Zn-MnO₂ LR626/LR626H button cell (non-rechargeable)
Category
Portable battery
Chemistry system
Zn-MnO₂
Model
LR626/LR626H
Trade/Brand name
TianQiu/No-brand/OEM brands
Nominal Voltage
1.5V
Production Date
According to customer requirements, generally printed on the battery body:Y-M For example: 64=2026-04 6X=2026-10 6Y=2026-11 6Z=2026-12
Shelf Life
One years under normal storage conditions
Country of Origin
China

Manufacturer

DongGuan Tianqiu Enterprise Co., Ltd.
TianQiu Industrial Park, Xinji Industrial Zone, Machong Town, Dongguan Guangdong, P.R.China

European Authorized Representative

  • Apex CE Specialists GmbH
  • Grafenberger Allee 277, 40237 Düsseldorf, DE
  • Contact: Wells Yan
  • Email: Info@apex-ce.com
  • Tel: +49 2131 206 6043

Battery Characteristics Data Sheet

TypeApprox. WeightCapacityMAD
Normal0.3g13mAh450.0 hours
Extra0.3g15.5mAh530.0 hours

◆ Capacity & MAD test condition: 47KΩ 24h/day to 1.2V @ 20±2℃◆ Approx. weight only for reference

Critical Raw Materials

  • Manganese
  • Graphite

Hazardous Substances & SVHC Statement

No substances listed in the REACH Candidate List of Substances of Very High Concern (SVHC) are present above 0.1% w/w.

Related Documents

Doc No.: TQ-EUDOC-LR626-20260701 · 13mAh

IEC standards: IEC 60086-1:2021 · IEC 60086-2:2021 · IEC 60086-3:2021 · IEC 60086-5:2021

Conformity module: Module A — Internal Production Control

Manufacturer: DongGuan Tianqiu Enterprise Co., Ltd. — assessed against Articles 6 & 13 of Regulation (EU) 2023/1542.

FAQ

What is an SR626 battery?

A 1.55V button cell (silver-oxide crossover), 6.8 mm diameter and 2.6 mm high.

Is SR626 the same as AG4?

Yes — SR626, AG4 and 377 are equivalents; our cells carry the crossover and run at 1.55V.

Related battery types