High Quality 3.7V 2560mAh/9.472Wh LSAFE_MOBILE B21S Battery For Isafe Mobile PHONE
Do you want to buy a cheap LSAFE_MOBILE B21S Compatible battery? We offer you a cheap LSAFE_MOBILE B21S Compatible battery - an incredibly high quality Compatible battery! All LSAFE_MOBILE B21S are brand new,1 year Warranty, 100% Guarantee Quality and Fully Test!

✔ Battery for B21S Ships to Singapore
Product Overview
This battery is suitable as a replacement battery for Isafe Mobile PHONE battery and LSAFE_MOBILE B21S model.
High capacity LSAFE_MOBILE B21S battery for longer standby time.
The battery is professionally tested to ensure the best lifespan.
1 year warranty, 30 days money back, 100% brand new!
Battery capacity (mAh/A/W) may be different; the more mAh/A/W it displays, the higher its autonomy.
Safety certified CE / FCC / RoHS.
Key Features
- High‑capacity design with 2560mAh/9.472Wh for extended device runtime.
- Stable 3.7V output ensures consistent performance during daily use.
- Built with high‑quality lithium‑ion cells for improved durability and long cycle life.
- Advanced protection system including overcharge, over‑discharge, overheat, and short‑circuit safeguards.
- Optimized for reliable performance in warm and humid environments.
- Lightweight and compact design for easy installation and device compatibility.
Technical Specifications
| Model | B21S |
| Battery Condition | Brand New Replacement Battery |
| Item Code | 2610BA1374M_Te |
| Category | Smartphone Batteries |
| Brand | LSAFE_MOBILE |
| Capacity | 2560mAh/9.472Wh |
| Voltage | 3.7V |
| Type | Li-ion |
| Color | Black |
| Size | *mm(L x W x H) |
| Applies to | Isafe Mobile PHONE |
| Certification | Passed CE, UL, ROHS, ISO 9001/9002 and GS certification |
| Service | Buy now, we promise a one-year warranty and 30-day returns |
Compatible Models
Replacement Part Numbers:
Compatible Models:
For Isafe Mobile PHONE
* Please make sure that the replacement battery you are buying is suitable for your device brand and model.
Battery Care & Maintenance
- Store the battery in a cool, dry environment to maintain long‑term performance.
- Avoid exposing the battery to excessive heat or direct sunlight, especially in warm and humid climates.
- Use compatible LSAFE_MOBILE chargers or certified charging accessories to ensure safe and efficient charging.
- Avoid frequent full discharges; partial charge cycles help extend overall battery lifespan.
- If the battery will not be used for an extended period, keep it at around 40–60% charge before storage.
- Clean the battery contacts periodically with a dry cloth to maintain stable power delivery.
- Do not puncture, crush, or expose the battery to water or high humidity.
Frequently Asked Questions
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👉 View the B21S Battery Product Page