21700 4500mAh 3.7V Steel-shell battery Customization
Irayenergy is a custom-oriented manufacturer and energy solutions provider dedicated to the research, development, production, and sales of polymer lithium-ion batteries.
Specializing in the production of 4500mAh 3.7V Steel-shell batteries.
- Wide Application – Ideal for various portable electronic devices with stable performance and compact size.
- Long Cycle Life – Supports over 500 cycles at 0.5C charge/discharge, ensuring long-lasting reliability.
- Eco-Friendly Design – Compliant with environmental standards, safe and sustainable for everyday use.
- Customizable Options – Flexible in size and capacity (30~500mAh) to meet diverse product requirements.
Basic Info.
| Information | Parameter | Information | Parameter |
|---|---|---|---|
| Model NO. | 21700 | Charger Application | Standard Battery |
| Nominal Voltage | 3.7V | Charger Style | Standard Charger |
| Weight | 76g | Battery Size | 21*70mm(Max) |
| Cycle Life | 1000 cycles | Protect | / |
| Capacity | 4500mAh | Voltage for shipment | 3.9-4.0V |
| Combination | 1S1P battery Pack | Battery Model | 21700 |
| Power Rate | 16.65Wh | Operating Temperature(℃) | Charging:10-45℃ Discharging:-20-60℃ |
| Terminal Application | Power Tools | Name | Lithium-Ion Battery |
| Transport Package | Cartons/Pallets | Specification | 21700 battery pack 3.6 volt |
| Trademark | OEM | Origin | Guangdong, China |
Product details
Discharge Rate
Lithium batteries exhibit varying discharge rates. irayenergy's batteries support a maximum discharge rate of 5.0C, delivering high power output in short durations.
Long Cycle Life
irayenergy's lithium battery maintains over 80% capacity after 500 cycles at room temperature, utilizing 0.5C charge and discharge conditions.
Ultra-Low Self-Discharge
irayenergy's lithium battery maintains over 80% capacity after 500 cycles at room temperature, utilizing 0.5C charge and discharge conditions.
Wide Temperature Range
Lithium batteries operate within the -20°C to 60°C discharge temperature range. irayenergy's custom low-temperature batteries can be used for -40°C to 55°C operation, catering to diverse outdoor scenarios.
Packaging Method for Shipment
Outer carton
Batteries outer carton is UN package, but sometimes the express will require standard carton for low power batteries.
Cion cell packaging
The cion cell battery can be pack in box or in tray, it depends on customer needed.
Soft pack battery packaging
The soft pack battery include pouch cell limno2 battery and polymer rechargeable battery, they all pack in tray, but 1 pcs in 1 hole
Cylindrical battery packaging
for the cylindrical cell normally 1 pcs in 1 box
