R03 / AAA Battery: AAA Size, Carbon-Zinc 1.5V
The carbon zinc AAA — the value tier of the most-stocked battery size, retail packed from 2 to 16 pcs.
Specifications
- Voltage
- 1.5V
- Diameter
- 10.4 mm
- Thickness
- 44.5 mm
- Capacity
- 400 mAh
- Weight
- 7.5 g
- UL
- UN38.3
- CE
- RoHS
- ISO9001

A R03/AAA replacement question is nearly always a chemistry question: match the letter (R for carbon zinc, LR for alkaline) before matching the size.
Buying R03/AAA in bulk? Retail packs run from 2 to 16 pcs with box quantities from 12 to 48 — private label on every format.
Where it is used
- Remote controls
- Radios
- clock
Equivalent & Cross-Reference
- R03P
- AAA
Packing quantities are standard; other formats on request.
R03/AAA naming & equivalents
R03/AAA is the carbon zinc designation; AAA is the retail name in most markets. The chemistry letter on the pack is the spec — same size, different capacity tier.
Wholesale & Custom Supply
Carbon zinc AAA cells: 2S/4S shrink packs with 40 pcs per box, plus 8S–16S formats.
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
- Zn-MnO₂ R03 battery (non-rechargeable)
- Category
- Portable battery
- Chemistry system
- Zn-MnO₂
- Model
- R03/AAA
- Trade/Brand name
- TianQiu/No-brand/OEM brands
- Nominal Voltage
- 1.5V
- Production Date
- According to customer requirements, generally printed on the battery body: PD MM-YYYY or PD MM/YYYY or PD MM/YY
- Shelf Life
- Three years under normal storage conditions
- Country of Origin
- China
Manufacturer
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
| Type | Approx. Weight | Capacity | Application duration - radio |
|---|---|---|---|
| PVC/Aluminum film | 7.5g | 400mAh | 21.0 hours |
| Metal | 8.5g | 400mAh | 21.0 hours |
◆ Capacity & Application duration test condition: 75Ω 4h/day to 0.9V @ 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
Manufacturer: DongGuan Tianqiu Enterprise Co., Ltd. — assessed against Articles 6 & 13 of Regulation (EU) 2023/1542.
FAQ
What is a R03/AAA battery?
A 1.5V carbon zinc (R03) cylindrical cell, 10.4 × 44.5 × 10.4 mm, about 44.5 typical capacity (400 mAh).
Is R03/AAA the same as AAA?
Yes — the carbon zinc (R03) chemistry letter is the spec; the retail name refers to the same physical size.
Can I buy R03/AAA in bulk?
Yes — from 50 cartons with shrink, blister or paper pack formats.

