Good Cool D301 10000mAh Power Bank
Quick Answer
The Good Cool D301 10000mAh Power Bank is a compact 10W portable charger with a 37Wh battery, LED battery display and four integrated connectors. It supports ordinary charging of compatible phones and small USB accessories. Check Zadgetshop current price, stock, colour, warranty and delivery information before ordering.
Product Overview
The D301 addresses two common problems: forgetting a charging cable and not knowing how much backup remains. Its integrated connectors support common devices, while the display provides clear battery information.
The 10000mAh or 37Wh battery balances portability and daily backup. The full cell rating does not reach a phone unchanged because conversion, heat and circuitry reduce delivered energy. The photographed box lists 5300mAh rated output capacity, while another unit label shows 5500mAh, suggesting batch variation.
Its approximately 10W output suits routine phone charging but is slower than verified 18W, 20W or 22.5W models. It is not intended for laptop charging.
Product Specifications
| Specification | Details |
| Brand | Good Cool |
| Model | D301 |
| Product type | Portable power bank |
| Battery capacity | 10000mAh/37Wh |
| Rated output capacity | 5300–5500mAh shown across photographed labels; may vary by batch |
| Charging power | Up to approximately 10W |
| Input/output | 5V; 2A or 2.1A shown across photographed labels |
| Connections | Integrated USB-A, Micro-USB, USB-C and Lightning connectors |
| Display | LED battery-level display |
| Additional feature | Dual LED lights and carrying strap |
| Material | PC + ABS; V0 classification printed on packaging |
| Dimensions | 104 × 64 × 29mm |
| Weight | 236 ± 5g |
| Colours | Publish only currently stocked options |
| Warranty | Confirm the current Zadgetshop policy |
How People Use the Good Cool D301
Students, commuters and freelancers can maintain phone or hotspot access away from a socket. Travellers can keep maps and communication available. During load shedding, it provides emergency phone power and may charge compatible small accessories.
Features Explained
10000mAh Capacity and 37Wh Energy
Depending on phone capacity, use and conversion loss, users may receive roughly one to two complete charges, not a guaranteed number.
Built-in Cable Convenience
Four integrated connectors reduce dependence on separate cables. Check each connector’s input or output role on the selected unit.
10W Charging
The D301 provides standard charging. Do not treat it as a modern PD or QC model unless unit documentation confirms those protocols.
Battery Display and LED Lights
The display shows when to recharge. Dual LEDs provide close-range illumination during outages or low light.
How to Use the Good Cool D301
- Inspect the unit and cables for damage.
- Check the display and choose the matching connector.
- Connect the phone securely.
- Press the power button if required.
- Monitor for unusual heat and disconnect after charging.
- Recharge through a supported input with a suitable 5V charger.
- Stop using a swollen or damaged unit.
Pros and Cons
Pros
- Compact 10000mAh format
- Four integrated connectors
- Visible battery-level display
- Dual LED lights
- Suitable for everyday phone backup
Cons
- 10W is slower than current higher-wattage models
- PD and QC support are not confirmed
- Not designed for laptop charging
- Label ratings may differ by batch or colour
Things to Check Before Buying
Confirm connector compatibility and whether 10W meets your needs. Check colour, price, stock, package contents, warranty, exchange rules, cash on delivery and delivery charges. Choose another model for verified PD/QC, wireless or laptop charging.
Compare With Similar Power Banks
| Option | Best for |
| Good Cool D301 10W | Built-in cable convenience and routine phone backup |
| Verified 18W or 20W PD model | Faster compatible phone charging |
| Verified 22.5W model | Buyers prioritising higher charging speed |
| 20000mAh power bank | More energy with additional size and weight |
Compare wattage, connectors, warranty and usable output, not mAh alone.
Good Cool D301 Power Bank Price in Bangladesh
The current price appears at the top of the Zadgetshop page. Check the live offer, colour and stock before ordering; old social-media or competitor prices may be outdated.
Why Buy From Zadgetshop?
Zadgetshop provides original photos, visible specifications and compatibility guidance. Contact support with your phone model if you need help checking connectors.
Warranty, Delivery and Support
Confirm warranty, exchange period, delivery charge, delivery time and cash-on-delivery conditions. Keep the invoice, packaging and accessories for eligible support.
Is the Good Cool D301 Worth Buying?
It is a sensible option for users wanting compact backup power, built-in cables and a battery display. Choose another model if rapid charging, wireless charging, laptop support or substantially higher capacity is your main priority.
Frequently Asked Questions
What is the Good Cool D301 price in Bangladesh?
The current price appears on the Zadgetshop product page. Confirm the live offer, selected colour and stock before ordering.
How many times can it charge a phone?
It may provide roughly one to two complete charges, depending on phone capacity, battery condition, heat, conversion loss and phone use during charging.
Does the D301 support fast charging?
It offers approximately 10W standard charging. Verified PD or QC support is not shown, so it should not be treated as a modern high-speed power bank.
Which built-in connectors are included?
The photographed unit shows USB-A, Micro-USB, USB-C and Lightning connectors. Their exact input and output roles may vary by unit label.
Can it charge Android phones and iPhones?
Yes, when the phone supports a matching connector and standard 5V charging. Check your phone model before ordering.
Does it have a battery display?
Yes. The LED battery-level display helps users check remaining power and decide when to recharge the unit.
Can it charge a laptop?
No. Its approximately 10W output is intended for compatible phones and small accessories, not typical USB-C laptops.
Can I carry it on a flight?
Its 37Wh rating is below the common 100Wh threshold, but power banks normally belong in carry-on baggage. Always confirm current airline rules.
Is it suitable for daily use?
Yes, particularly for commuting, study, travel and load-shedding backup when standard charging speed meets your needs.
Does it include a warranty?
Warranty or exchange terms depend on the current Zadgetshop offer. Confirm coverage and claim requirements before ordering.
