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J+ Booster 2 Portable EV Charger Review

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7.8
Expert ScoreRead review

The J+ Booster 2 Portable EV Charger offers fast Level 2 charging (9.6 kW, 240V) for all-electric vehicles. With a 21ft cable, NEMA 14-50 plug, and ETL certification, it provides reliable power both indoors and outdoors. The included carrying case ensures easy storage and portability for convenient home charging.

The J+ Booster 2 Portable EV Charger offers fast and reliable charging for electric vehicles. This Level 2 charger provides up to 40 amps of power, charging EVs seven times faster than a standard wall outlet. Its flexible amperage settings (12/16/20/24/32/40 amps) adapt to various needs, making it suitable for home and travel use.

The charger is lightweight and compact, fitting easily into a vehicle’s trunk. Its durable design ensures reliable performance in all weather conditions. The included NEMA 14-50 adapter allows simple plug-and-play installation without professional assistance. Additional adapters for various outlets are sold separately, enhancing its versatility.

German engineering ensures durability and safety, and the charger is backed by a two-year warranty. It supports all-electric vehicles with a J1772 connector or adapter and is compatible with popular models such as Tesla, Chevrolet Bolt, Hyundai Kona, Nissan LEAF, and Ford Mustang Mach-E.

A standout feature of the J+ Booster 2 is its automatic amperage adjustment. This feature ensures optimal charging efficiency based on the connected outlet, offering convenience and safety. Users report the charger’s compact size makes it easy to store alongside adapters and other accessories.

For many users, the J+ Booster 2 eliminates the need for a permanent wall-mounted unit. Its portability and ease of use make it an excellent option for EV owners seeking flexibility. Whether at home or on the road, the J+ Booster 2 delivers reliable charging, supported by excellent customer service and durable German manufacturing.

J+ Booster 2 Portable EV Charger NEMA 14-50 Installation Guide

Figure 1 illustrates the wiring for a J+ Booster 2 Portable EV Charger with a NEMA 14-50R outlet. The configuration includes a 50-amp double-pole breaker, a main breaker, and neutral and ground busbars in a 120V/240V panel. The setup uses 6 AWG 90°C copper wire in a ¾”–1¼” conduit and requires a ground rod. Labeled components: L1 (Hot 1), L2 (Hot 2), Neutral, and Ground. NEC-compliant NEMA 14-50 outlets support safe 40A continuous operation.

Diagram showing the wiring for a J+ Booster 2 Portable EV Charger using a NEMA 14-50R outlet. The setup includes a 50-amp double-pole breaker, a main breaker, neutral and ground busbars in a 120V/240V panel, and 6 AWG 90°C copper wire in a ¾”–1¼” conduit. A ground rod ensures proper grounding. Labeled components: L1, L2, Neutral, Ground.

Compatible NEMA 14-50 Outlets

Use NEC-approved NEMA 14-50 outlets for reliable 40A continuous operation on a 50A breaker. These outlets support 6 AWG wiring for safe and efficient performance.

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Hubbell Lighting 125V 50A 3-Pole 4-Wire Receptacle – HBL9450A
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The Hubbell 14-50 outlet is our number #1 NEMA 14-50 outlet that we recommend for plug-in Level 2 EV charger installations, the outlet combines safety, durability, and performance, making it a top choice for EV owners with a plug-in Level 2 EV charger aiming to establish a dependable home charging station.
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Bryant Electric 9450FR 50 Amp 125/250V NEMA 14-50R Flush Straight Blade Receptacle, Black
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The Bryant 14-50 outlet is a durable, 50-amp solution for Level 2 EV charging. Built with heat-resistant materials, it supports #10-6 AWG wires and stays cool at 75°F during extended use. UL-listed and easy to install, it delivers reliable performance, making it a safe and efficient choice for EV owners.
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Leviton 279-S00 50 Amp, 125/250V, Nema 14-50R, 3P, 4W, Flush Mounting Receptacle, Straight Blade, Industrial Grade, Grounding, Side Wired, steel Strap, Black
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The Leviton NEMA 14-50 outlet is a reliable, durable choice for Level 2 EV charging, supporting 50 amps and 125/250 VAC. It features easy-to-identify terminals, accepts up to 6 AWG wires, and includes mounting hardware. However, it lacks instructions, and spring-loaded contacts may wear over time, posing a fire risk.

J+ Booster 2 Portable EV Charger Compatible Outlet Covers

Our J+ Booster 2 Portable EV Charger review included testing compatible EV charger outlet covers. These covers protect against accidental contact with live components, reduce tampering, and prevent theft. They also improve the look, save energy, and show overload indicators for added security.

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TayMac MM420C 1-Gang Nonmetallic Extra Duty Weatherproof In-Use Horizontal/Vertical 16-in-1 Standard Cover, 2.75 in, Clear
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The TayMac MM420C Extra Duty EV Charger Outlet Cover provides strong outdoor protection for EV charger outlets. Constructed from durable high-impact polycarbonate, it ensures quick installation and versatile 16-in-1 configuration. Certified to cULus and NEMA standards, it includes a lockable tab. For enhanced EV charger theft protection, an EV charger lockbox is recommended.
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TayMac MX3200 RaynGuard Extra Duty Metal Weatherproof in-Use Cover, 1-Gang, Gray, 3.55 x 3.37 x 6.12 inches
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The TayMac MX3200 Extra Duty EV Charger Outlet Cover is a durable, flexible, and secure solution for outdoor EV charger installations, providing peace of mind and reliable protection for your equipment.
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TayMac MM720G 1-Gang Horizontal or Vertical Weatherproof Jumbo Extra Duty While in Use Cover , Gray
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The TayMac Extra Duty EV Charger Outlet Cover offers durable, weatherproof protection for outdoor NEMA outlets, specifically designed for plug-in EV chargers. With a quick-install design, 16 configuration options, and a lockable tab to prevent theft, its tough polycarbonate construction ensures secure and reliable performance for your EV charging needs.
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TayMac MM410C Single Horizontal/Vertical Mount 1-Gang Weatherproof In-Use Electrical Outlet Cover for Home Improvement, 2.75 in, Clear
Deal
The TayMac Duplex EV Charger Outlet Cover offers durable protection for indoor EV charging outlets. Made from high-impact polycarbonate, it features a sleek, clear design and supports easy installation with a Quick-Fit system. Ideal for garages, it accommodates most outlets but may not fit all plug configurations.
7.8Expert Score
The J+ Booster 2 Portable EV Charger offers fast Level 2 charging (9.6 kW, 240V) for all-electric vehicles. With a 21ft cable, NEMA 14-50 plug, and ETL certification, it provides reliable power both indoors and outdoors. The included carrying case ensures easy storage and portability for convenient home charging.
Features
8.5
Real World Usage
8
Materials
7.5
Durability
8
Craftsmanship
7.5
Design
7.5
Monetary Value
8
Product Value
7.5
Brand Reputation
7.5
Expert Valuation
7.5

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