Description
Package content: 2 x batteries (sold as 2pcs/lot)
Battery model: 602530
Capacity: 440mAh / 1.628Wh (per battery)
Rated voltage: 3.7V
Charge limit voltage: 4.26V (max)
Discharge cut-off voltage: 2.75V
Battery type: Li-Polymer (with built-in PCM protection board)
Dimensions (single): 30 x 25 x 6mm / 1.18 x 0.98 x 0.24 inches
Weight: 8g per battery
Discharge current: 0.5C (220mA)
Charge current: 0.5C (220mA)
Connection: 2-wire pigtail (Red wire “+” Positive, Black wire “-” Negative) — no connector
Compatible with: Driving Recorder, Early Education Toy, Voice Recorder, Small Speaker, Wireless Keyboard/Mouse, Bluetooth Headset, LED Light, Smart Wearable, Beauty Instrument, Portable WiFi, DIY 3.7V Electronic Projects
Power up your portable electronics with this 2‑pack 602530 440mAh rechargeable Li‑Polymer battery set. Perfect for driving recorders (dash cams), early education story machines, voice recorders, small speakers, wireless keyboards/mice, Bluetooth headsets, LED lights, smart wearables, beauty instruments, portable WiFi hotspots, and various DIY 3.7V electronic projects. Each battery delivers factory-rated 440mAh capacity with built‑in protection against overcharge, over‑discharge, short circuit, and overcurrent — ensuring safe and reliable operation for your devices.
Manufactured with high‑quality Grade A Li‑Polymer cells and equipped with integrated PCM protection board. The protection features include overcharge protection (detection 4.26±0.05V), over‑discharge protection (detection 2.75±0.1V), overcurrent protection, and short circuit protection. With a cycle life of 500 cycles retaining 80% of original capacity, these batteries offer reliable long‑term performance. CE, RoHS, and UN38.3 certified for safe transport and use. Operating temperature range: charge 0‑45°C, discharge ‑20 to 60°C.
Compatibility Note: Please check your original battery model and device voltage before ordering. Verify that your device’s battery compartment measures approximately 30×25×6mm and requires 3.7V. Red wire positive (+), black wire negative (-). Not suitable for high‑power devices like power tools or drones.
Installation Tip: If your original battery has a different connector, cut the connector from the old battery (keep at least 5cm of wire) and solder it to the new battery wires — red to red, black to black — then insulate with heat shrink. Always verify polarity before soldering.
Battery Care Tips: Avoid full discharge — recharge when battery level drops below 20%. Do not expose to high temperatures or direct sunlight. New batteries require 3‑5 full charge cycles to reach optimal capacity. Always use a compatible 3.7V Li‑Po charger (≤220mA). Store in a cool, dry place when not in use.
✅ Condition: Brand New – Never used, factory‑tested quality
✅ Built‑in Overcharge / Over‑discharge / Overcurrent / Short Circuit Protection
✅ CE / RoHS / UN38.3 Certified
✅ 90‑Day Warranty from delivery – Longer coverage than major platforms
✅ Ships in 3‑7 days with tracking
🛡️ Shipping Protection Available at Checkout
✅ PayPal Buyer Protection included
⚠️ Low Stock Alert: Only 1 left in stock. Order now to avoid waiting.
✅ Why Our Warranty Stands Out
Unlike marketplace sellers with short buyer protection windows, we handle claims directly — no automated disputes, no endless back-and-forth.
| Compare | ✅ Qingsm Tech | ⚠️ eBay / AliExpress |
|---|---|---|
| Warranty Period | 90 days from delivery | 15-30 days from order confirmation |
| When It Starts | 📦 Upon delivery | ⚠️ Upon order confirmation (even before you receive it) |
| Claims Handling | We do it directly — email us | Automated dispute system, seller dependent |
| After Window Expires | Still can contact us for support | No recourse, seller can ignore you |
🔋 90-day warranty is the industry standard for replacement batteries. Batteries naturally lose capacity over time — this normal wear is not covered. Warranty applies to manufacturing defects only.
📦 Shipping Cost & Delivery Time ( Economy Shipping from China )
📦 Note: Batteries are classified as hazardous goods and must be shipped via specialized channels, which may take slightly longer than standard couriers. Delivery times are estimates; actual delivery may be affected by customs, weather, or other unforeseen circumstances.
| Destination | Freight (USD) | Est. Delivery Time |
|---|---|---|
| United States | $7.80 | 8-20 days |
| Canada | $6.80 | 18-45 days |
| Mexico | $10.00 | 30-60 days |
| Germany, France, United Kingdom, Greece | $6.50 | 18-45 days |
| Ireland, Austria, Belgium, Poland, Denmark, Switzerland, Portugal, Norway, Slovakia, Spain, Hungary, Italy, Czech Republic, Luxembourg, Netherlands, Sweden, Cyprus | $8.00 | 18-45 days |
| Croatia, Finland, Lithuania, Latvia, Slovenia | $8.00 | 30-60 days |
| Romania | $14.00 | 30-60 days |
| South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan | $7.50 | 18-45 days |
| United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil | $18.00 | 25-60 days |
* Delivery times are estimates; actual delivery may be affected by customs or other factors. If your country is not listed, we are currently unable to ship batteries to that destination.
🇧🇷 Note for Brazil: Brazilian customs can occasionally cause delays of up to 80 days or more. And please indicate the recipient’s CPF, as it is required for Brazilian customs and shipping. Thanks ! We appreciate your understanding.
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