Description
Battery capacity: 8000mAh / 29.6Wh
Rated voltage: 3.7V
Charge limit voltage: 4.2V
Discharge cut-off voltage: 2.75V
Discharge current: 4A (maximum)
Charging current: 0.5C (recommended)
Dimensions: 77 × 39 × 19 mm
Weight: 124g
Service life: 500 cycles (retain 85% capacity)
Battery type: Li-ion (Rechargeable)
Package include: 1 x battery, pre-attached wires
Power your custom DIY projects with this high-capacity 8000mAh 3.7V Li-ion battery. This universal battery features a built-in protection circuit board (PCB) and comes with pre-attached wires, making it ready for easy integration into various electronics, portable devices, and backup systems. The compact dimensions of 77x39x19mm offer design flexibility for hobbyists and makers. Built-in protection guards against overcharge, over-discharge, and short circuits, ensuring both battery and device safety. The battery supports a maximum discharge current of 4A and can withstand discharge temperatures from -20°C to 60°C. This versatile battery is an ideal power source for DIY electronics, portable speakers, LED lights, Arduino projects, robotics, and IoT devices.
Compatibility Note: This is a universal battery for DIY projects. Please verify your device’s voltage requirements, connector type, and battery compartment dimensions before purchasing. The pre-attached wires measure approximately 50mm in length.
Battery Care Tips: Avoid full discharge (keep above 2.75V). Use a compatible 3.7V Li-ion charger (0.5C recommended). Do not exceed 4A continuous discharge. Store in a cool, dry place when not in use. If swelling occurs, stop use immediately.
✅ Condition: Brand New – Never used, premium quality
✅ Built-in Protection Board – Overcharge / Over-discharge / Short circuit protection
✅ Pre-attached Wires – Ready for easy installation
✅ 90-Day Warranty – Hassle-free replacement
✅ Ships in 3-7 days with tracking – Fast delivery
🛡️ Shipping Protection Available at Checkout – Covered against loss, damage, or theft
✅ PayPal Buyer Protection included – Secure checkout
⚠️ Low Stock Alert: Only 8 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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