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2 Years
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| Brand Name : | RESKY |
| Model Number : | LP502030 |
| Certification : | CE, RoHS, MSDS, Un38.3 |
| Price : | Negotiable |
| Payment Terms : | T/T,Western Union |
| Supply Ability : | 50000pcs/day |
| Delivery Time : | 7-10days |
Lithium Polymer Battery Cell 502030 3.7v 250mAh Lipo Batteries For Bluetooth Speaker
| NO. | Items | Specifications |
| 1 | batteries | 3.7v 250mah lipo battery |
| 2 | Charge voltage | 4.2V |
| 3 | Nominal voltage | 3.7V |
| 4 | Nominal capacity | 250mAh 0.2C Discharge |
| 5 | Charge current | Standard Charging:0.5C Rapid charge: 1.0C |
| 6 | Standard Charging method | 0.5C CC(constant current)charge to 4.2V, then CV(constant voltage 4.2V)charge till charge current decline to ≤0.05C |
| 7 | Charging time | Standard Charging:2.75hours(Ref.) Rapid charge: 2hours(Ref.) |
| 8 | Max.charge current | 1.0C |
| 9 | Max.discharge current | 1.0C |
| 10 | Discharge cut-off voltage | 2.75V(0.2C) |
| 11 | Operating temperature | Charging: 0 °C ~45 °C Discharging:0 °C ~45 °C |
| 12 | Storage temperature | -10°C~ +45 °C |
| 13 | Dimension | Length: 50±2mm (not including tabs) Width: 20±0.5mm Thickness:5±0.2mm |
| 14 | Drop Test | The cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage |
| 15 | cycle time | ≥500times |
Main Features:
Ultra-Thin & Compact Form Factor: With dimensions of 5mm
(thickness) × 20mm (width) × 30mm (length) and a typical weight of
4–6g, it features an ultra-slim, miniaturized design—perfect for
devices with strict space constraints (e.g., thin wearables, Mini
sensors).
Balanced Electrical Performance: Boasts a nominal voltage of 3.7V
(working voltage range: 3.0V–4.2V) and 250mAh capacity (0.925Wh
energy), striking a balance between runtime and size. It meets the
power needs of low-to-medium power devices, avoiding the short
standby time of 200mAh batteries and the bulk of 300mAh+ models.
Reliable Safety Protection: Adopts a soft-package lithium battery
structure with a built-in protection IC. It effectively prevents
overcharge, over-discharge, short circuits, and overcurrent,
reducing risks of swelling or thermal damage. It complies with
common safety standards for consumer electronics.
Durable Cycle Life: Supports 300–500 charge-discharge cycles (under
standard conditions: 0.5C charge/discharge, 25℃ environment). After
300 cycles, it retains over 80% of its initial capacity, ensuring
long-term stable use for devices like wearables or sensors.
Low Self-Discharge Rate: Loses only 5%–8% of capacity per month at
room temperature. This makes it suitable for devices that require
occasional use or long standby (e.g., emergency sensors, backup
power for small gadgets), as it avoids frequent recharging.
Wide Environmental Adaptability: Operates stably in a temperature
range of -10℃–60℃ (discharge) and 0℃–45℃ (charge). It can adapt to
indoor/outdoor use scenarios, such as outdoor mini sensors or
cold-region wearable devices.
Main Application:
Mini Wearable Devices:
Children’s basic smartwatches (focus on positioning and call
functions, no need for large capacity, emphasizing slim design).
Mini health monitors (e.g., portable oximeter, single-function
heart rate trackers) — lightweight and small size fit comfortably
on fingers/wrists.
Smart jewelry (e.g., mini smart bracelets, smart rings with simple
notification functions) — ultra-thin structure matches jewelry’s
aesthetic and wearing comfort.
IoT Micro Sensors:
Smart home mini sensors (e.g., door/window contact sensors, mini
temperature/humidity sensors for cabinets) — low power consumption,
250mAh capacity supports 3–6 months of standby.
Industrial mini sensors (e.g., micro pressure sensors for small
pipelines, asset tracking tags for small items) — compact size fits
into narrow installation spaces.
Agricultural micro sensors (e.g., mini soil moisture sensors for
potted plants) — lightweight and easy to embed in soil without
affecting plant growth.
Small Consumer Electronics:
Wireless earbud charging cases (auxiliary power supply,
supplementing the case’s internal battery to extend earbuds’ total
usage time).
Mini digital devices (e.g., portable mini voice recorders,
ultra-small Bluetooth remote controls for cameras/PPTs) — small
size reduces device bulk, 250mAh capacity meets 5–10 hours of
continuous use.
Portable mini LED lights (e.g., keychain LED lights, camping mini
lanterns) — lightweight and easy to carry, supporting 8–12 hours of
low-brightness lighting.
Medical & Emergency Gadgets:
Fingertip mini blood glucose meters (home-use, low power
consumption, 250mAh capacity supports 50–100 test cycles).
Emergency mini devices (e.g., portable mini alarms, mini GPS
locators for the elderly/children) — long standby time ensures
timely use in emergencies.
Mini Toys & Models:
Micro remote-controlled (RC) toys (e.g., mini RC cars, mini drones
under 50g) — lightweight battery avoids affecting toy
maneuverability, 250mAh capacity supports 15–30 minutes of
playtime.
Electronic educational toys (e.g., mini coding robots, small
electronic building blocks) — safe and compact, matching the toy’s
miniaturized design.
Picures:
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