4S Lipo Battery 14.8V 6500mAh EC5 100C 2-Pack - High Discharge RC

In this review of the Nihewo 4S Lipo Battery 14.8V 6500mAh 100C (2-pack) the bottom line is clear: this set is for serious hobbyists who want dependable high-current bursts and longer runtime for large-scale RC vehicles. The reviewer found the pack best suited to 1/5, 1/6 and 1/7 scale cars, trucks and boats that demand a low resistance, well-balanced battery; the combination of 100C discharge and 10AWG soft leads makes the pair stand out for high-power runs while the durable pack case and EC5 connector keep installation straightforward.

Key Features

• High discharge: The 100C rating supplies strong sustained and peak current for large-scale RC models, enabling aggressive acceleration and reliability under load.
• Generous capacity: At 6500mAh per pack the batteries extend driving or flying time over smaller cells, delivering roughly 12% longer running time as tested by the reviewer.
• Low internal resistance: The cells have reduced resistance which helps deliver peak power and improves voltage stability during heavy bursts.
• Quality connectors and wiring: EC5 discharge plugs and 10AWG soft silicone wire leads make for easy, low-loss connections to most large RC ESCs and systems.
• Balanced and durable: Cells arrive well-balanced with minimal voltage difference and a hard case that protects the pack during handling and installation.
• Compatibility: Sized and specified to work with many Arrma, Axial, Losi and similar 1/5 to 1/7 models when the voltage and plug are matched.

Who It's For

This 2-pack is intended for experienced RC hobbyists running large-scale cars, trucks, boats, helicopters or multirotors that need sustained high current and longer runtime. Builders who use Arrma, E-flite, Losi, Axial or HPI platforms and who can confirm size and connector compatibility will find the performance advantages most relevant.

Hobbyists who primarily run smaller 1/10 or 1/8 scale models, or beginners who prefer lighter packs and simpler charging needs, should look elsewhere. Also, users who cannot or do not want to modify connectors themselves should verify the EC5 and JST-XHR-4P charge lead fit before buying.

Pros & Cons

Pros

• Strong 100C discharge supports high power draw and aggressive use in large RC vehicles.
• 6500mAh capacity provides noticeably longer runtime than many alternative packs.
• Well-balanced cells and low resistance improve longevity and consistent performance across runs.
• Durable hard case and 10AWG soft leads make installation and handling robust and convenient.

Cons

• Size and weight (1555038.5mm, ~566g) make it unsuitable for smaller scale models where clearance or balance is tight.
• EC5 discharge plug and JST charge plug require checking compatibility; some users may need to change plugs themselves.

Specifications

Brand	Nihewo
Voltage	14.8V (4S)
Capacity	6500mAh per pack
Discharge Rate	100C
Connectors	EC5 discharge, JST-XHR-4P charge
Dimensions	1555038.5mm
Weight	Approx 566g

Our Verdict

The Nihewo 14.8V 6500mAh 4S 100C 2-pack is a strong value for serious RC users who need high current, longer runtime and durable construction for large-scale models; its low resistance and balanced cells improve performance and longevity. Confirm size and connector fit before purchase, and it rewards users with dependable power for aggressive driving and demanding setups.

Frequently Asked Questions

Are these batteries compatible with Arrma and Losi models?
Yes, they are compatible when the 14.8V voltage, physical dimensions and EC5 discharge plug match your model; users can replace plugs if needed.

What charging plug is used?
The pack uses a JST-XHR-4P charge plug; ensure your charger supports that plug or use an appropriate adapter.

How many cycles can I expect?
The cells are rated for around 350 cycles with proper care, thanks to balanced construction and lower internal resistance.