7.4V 5200mAh 4 Cell 18650 Lithium Ion Battery Pack - High Capacity

In this review the author tests the 7.4V 5200mAh 4 Cell 18650 lithium ion battery pack to determine who should consider it and why. The bottom line: this pack is for hobbyists, security camera installers, and anyone needing a compact, high-density 7.4V supply that reliably protects cells from overcharge and overdischarge. The installed IC protection and heavy duty 18 gauge leads make it particularly suited to small projects and devices that demand sustained current and safer charging behavior.

Key Features

• High capacity: The 5200mAh capacity provides longer run time than many comparable 7.4V packs, reducing the frequency of recharges for camera systems or portable devices.
• Protection electronics: An installed IC chip prevents over charge and over discharge, which helps protect battery chemistry and prolongs usable life.
• Robust wiring: Heavy duty 18 gauge wire reduces voltage drop under load and is more durable during installation and movement.
• Connector options: Comes pre-tipped with a 2 pin female MTA-100 connector plus a loose male connector so users can match or replace device wiring without soldering the pack itself.
• Charging and discharge headroom: The pack supports up to 5 Amp max charge and discharge currents, which covers many small camera and electronics projects that need brief higher current draws.
• US-based support and stock: US supply, shipping and near 24/7 phone or text assistance make troubleshooting and replacements easier for domestic buyers.

Who It's For

This battery pack is best for DIY electronics builders, remote or covert camera setups, and technicians who need a compact, high-density 7.4V power source with built-in safety circuitry. The moderate weight and higher capacity suit devices where run time matters and where the installer can accommodate a 69mm by 54mm by 18mm pack.

It is less appropriate for ultra-lightweight wearables or projects that require unusual connector types without modification; users who need integrated mounting trays or manufacturer-specific batteries should look elsewhere or be prepared to adapt the connector.

Pros & Cons

Pros

• Higher than average capacity at 5200mAh gives longer operating time between charges for cameras and portable gear.
• Built-in IC protection helps prevent overcharge and overdischarge, improving safety and longevity.
• Heavy duty 18 gauge wire and pre-tipped connectors simplify installations and reduce wiring losses.
• Support and stock in the US with near 24/7 phone or text assistance add practical peace of mind.

Cons

• The pack's dimensions and weight make it heavier than ultra-light options, which may be a limitation for very small or weight-sensitive projects.

Specifications

Chemistry	Lithium Ion (Li-Ion)
Cell configuration	4 x 18650 cylindrical cells
Capacity	5200 mAh (38.48 Wh)
Working voltage	7.4 V
Charge cut off voltage	8.4 V
Discharge cut off voltage	5.5 V
Connector	2 Pin MTA-100 female (loose male included)

Our Verdict

The 7.4V 5200mAh 4 Cell 18650 pack is a practical, value-oriented choice for camera systems and DIY electronics that need longer run time and built-in protection. Its robust wiring, connector options, and US-based support make it a sensible purchase for installers and hobbyists who prioritize reliability over minimal weight.

Frequently Asked Questions

Can this pack supply high current draws?
Yes, the pack supports up to 5 Amp max charge and discharge current and a standard 2 Amp discharge rating, suitable for many small cameras and devices.

Does the pack include protection circuitry?
Yes, an installed IC chip prevents over charge and over discharge to help protect cell chemistry and prolong life.

What connector is provided?
The pack comes pre-tipped with a 2 pin female MTA-100 connector and includes a loose 2 pin male connector so you can match your device.