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10400 Battery & Charger – Compact Short-Body Li-ion Cells + Dedicated Chargers, Space-Saving Power Solution
Welcome to our 10400 Battery & Charger collection. The 10400 lithium-ion cell (approx. 10mm diameter × 40mm length) is a short-body derivative of the standard AAA (10440) format, engineered specifically for ultra-compact devices with extremely tight length constraints that still require a high-voltage 3.7V Li-ion platform. It retains the 10mm AAA diameter while reducing the length to approximately 40mm—shorter than a standard AAA and perfect for fitting into the most compact battery compartments. This collection offers a full range of 10400 cells—including high-capacity NMC and inherently safe LiFePO₄—with capacities from 200mAh to 400mAh, along with dedicated Li-ion chargers compatible with 10400/10440/14500/16340 and more. Ideal for miniature flashlights, headlamps, wearable electronics, compact medical devices, wireless sensors, smart home terminals, and any device with an extremely short cylindrical battery compartment.
Core Advantages of 10400 Batteries
- Ultra-Compact Form Factor: Approximately 10mm diameter with a length of only ~40mm (shorter than standard AAA). Specifically engineered for tiny devices where space is at a premium.
- High Voltage Platform: NMC versions deliver a nominal 3.7V (full charge 4.2V)—providing up to 3× the power of standard 1.5V alkaline cells in a much smaller footprint.
- Rechargeable – Economical & Eco-Friendly: Supports 500–1,000+ charge/discharge cycles, eliminating the need for constant disposable battery replacements and reducing environmental waste.
- Flexible Chemistry Options: Available in high-energy NMC (3.7V) and inherently safe LiFePO₄ (3.2V) formulations to meet diverse safety and voltage requirements.
- Low Self-Discharge: Monthly self-discharge as low as 3% ensures devices remain ready even after prolonged storage—perfect for intermittently used portable sensors.
Core Advantages of 10400 Dedicated Chargers
- Precision Charging Management: CC/CV profile with automatic battery type detection (Li-ion/LiFePO₄) and auto-termination to prevent overcharging.
- Multiple Safety Protections: Overcharge, over-discharge, overcurrent, short-circuit, reverse polarity, and overheat protection.
- Wide Size Compatibility: Supports 10400, 10440, 14500, 16340, 18350, and more—one charger for multiple small formats.
- Independent Charging Channels: Multi-bay chargers control each slot independently—mix cells of different charge levels and sizes.
- LCD Digital Display: Real-time monitoring of voltage, current, and charged capacity.
10400 vs. 10440 vs. 14500 – Key Comparison
| Parameter | 10400 | 10440 (AAA) | 14500 (AA) |
|---|---|---|---|
| Dimensions | ~10mm × ~40mm | ~10mm × ~44mm | ~14mm × ~50mm |
| Typical Capacity | 200mAh – 400mAh | 200mAh – 400mAh | 600mAh – 1000mAh |
| Nominal Voltage | 3.2V / 3.7V | 3.2V / 3.7V | 3.2V / 3.7V |
| Key Strengths | Ultra-short, fits extremely tight spaces | Standard AAA length, wide compatibility | AA length, larger capacity |
| Typical Applications | Ultra-compact flashlights, wearables, tiny sensors | Standard flashlights, remotes, toys | High-power flashlights, portable radios |
Popular 10400 Battery & Charger Models – Quick Reference
| Category | Model/Spec | Features |
|---|---|---|
| High Capacity | INR10400 400mAh | 400mAh / 1A, top choice for compact flashlights |
| Balanced | ICR10400 300mAh | 300mAh / 0.5A, general consumer electronics |
| LiFePO₄ | IFR10400 200mAh | 200mAh / 0.5A, 3.2V safe chemistry for medical |
| 2-Bay Charger | XTAR VC2 | LCD display, supports 10400/10440, USB input |
| 4-Bay Charger | Nitecore D4 | Independent channels, auto-detection, LCD |
| Single-Bay Portable | XTAR MC1 | USB input, ultra-portable, perfect for travel |
Typical Specifications Range (10400 Battery & Charger)
| Parameter | 10400 Battery | Compatible Charger |
|---|---|---|
| Nominal Voltage | 3.2V (LiFePO₄) / 3.6V–3.7V (NMC) | Auto-detection |
| Capacity Range | 200mAh – 400mAh | — |
| Continuous Discharge | 0.5A – 1.5A | — |
| Input Voltage | — | USB 5V / DC 12V |
| Charge Current | — | 0.25A – 1A (adjustable/adaptive) |
| Size Compatibility | 10mm × 40mm | 10400/10440/14500 and more |
Typical Applications
| Application | Recommended Combo |
|---|---|
| Ultra-compact flashlights / EDC lights | 10400 NMC + Single-bay USB charger |
| Wearable electronics / smart rings | 10400 LiFePO₄ + 2-bay LCD charger |
| Portable medical devices / monitors | 10400 LiFePO₄ + LiFePO₄-compatible charger |
| Wireless sensors / IoT terminals | 10400 Balanced + Multi-bay charger |
| Smart home terminals / remote controls | 10400 High-Capacity + 2-bay charger |
How to Choose the Right 10400 Battery & Charger?
| Your Requirement | Recommended Battery Type | Recommended Charger |
|---|---|---|
| I need maximum runtime for ultra-compact devices | High-Capacity NMC (400mAh) | 2-bay LCD charger |
| Safety is critical (medical/emergency) | LiFePO₄ (200mAh) | Charger with LiFePO₄ mode |
| I need portable charging for travel | Any 10400 | Single-bay USB portable charger |
| I need to charge multiple small cell types simultaneously | — | Multi-bay independent channel charger |
| I need bulk quantities or custom packs | Contact our sales team | — |
⚠️ 10400 Battery & Charger Safety Guidelines
- Precise Length Matching: The 10400 is approximately 4mm shorter than a 10440. Carefully measure your device's battery compartment length before purchase to avoid contact or fitment issues.
- Voltage Compatibility Verification: 10400 voltage (3.7V) is significantly higher than standard 1.5V AAA cells. Inserting a 10400 into voltage-sensitive 1.5V devices may cause overvoltage damage. Always confirm your device supports 3.7V Li-ion before use.
- Do Not Mix Chemistries: 3.2V LiFePO₄ and 3.7V NMC cells cannot be mixed or charged with the same settings. Verify charger mode before charging.
- Use a Dedicated Li-ion Charger: 10400 cells require a Li-ion-specific charger. Do not use NiMH/NiCd chargers.
- Avoid Over-Discharge: Stop discharging when voltage drops below 2.5V–2.8V (NMC) or 2.0V–2.5V (LiFePO₄). Recharge promptly.
- Avoid Short Circuits and High Temperatures: Do not short the terminals. Keep away from fire, heat, and moisture.
- Discontinue if Damaged: Stop using cells with torn wraps, dents, or leakage. Recycle responsibly.
Why Choose Our 10400 Battery & Charger Collection?
- Genuine Grade-A Cells: Batteries from Vapcell, Samsung, LG, and other Tier-1 manufacturers. Chargers from XTAR, Nitecore, and other professional brands.
- Fully Tested & Matched: Every battery batch undergoes capacity grading, IR testing, and voltage sorting.
- One-Stop Shopping: Cells, chargers, and accessories all in one place—save time and effort.
- Flexible Purchasing: Single-cell retail, multi-pack discounts, tiered bulk pricing, and custom pack assembly.
- Certified & Documented: UN38.3, MSDS, CE, RoHS documentation provided.
- Expert Technical Support: Guidance on cell selection, charger matching, and after-sales service.
👇👇👇 Browse the product list below to find the perfect 10400 Battery & Charger combo for your application. For volume quotes or custom pack solutions, please contact our engineering team.
