?Are you trying to decide whether the Flex-AC LE Level 2 EV Charger, 8-40 Amp, NEMA 5-15 and NEMA 14-50 Outlet, Indoor/Outdoor, CSA Tested, Energy Star, and FCC Certified Portable EV Charger, J1772 Extension Cable 22 ft (Blue) fits your daily charging needs and travel plans?
Overview
You’ll find this charger marketed as a portable, plug-and-play Level 2 EVSE that gives you flexible amperage control and outdoor-ready protection. It’s designed to charge significantly faster than Level 1 chargers while remaining simple to use—no app setup and no hardwiring required unless you prefer a permanent install.
Flex-AC LE Level 2 EV Charger, 8-40 Amp, NEMA 5-15 and NEMA 14-50 Outlet, Indoor/Outdoor, CSA Tested, Energy Star, and FCC Certified Portable EV Charger, J1772 Extension Cable 22 ft (Blue)
Key Features
This section highlights the main capabilities you’ll care about when choosing a charger: adjustable output, included NEMA adaptors, built-in control buttons and a screen, certification for safety and efficiency, and portability. Each of these features can directly affect how convenient and practical the unit is for your daily life or travel.
Fast Level 2 Charging (8–40 A, up to 9.6 kW)
You can set the charger to 8, 12, 16, 24, 32, or 40 amps, so you control how aggressively your vehicle charges based on the outlet and circuit you’re using. At the maximum 40 amps and 240 volts, the unit can deliver up to 9.6 kW, which translates to significantly shorter charge sessions compared to a standard Level 1 charger.
Plug-and-Play Portability: NEMA 14-50 and NEMA 5-15 Adaptors Included
You don’t need to hardwire anything to use the Flex-AC LE; it comes with a NEMA 14-50 plug for higher current outlets and a NEMA 5-15 adaptor for standard 120V outlets. That means you can use it at home, at a friend’s house, or at many RV parks and campgrounds that provide a 14-50 outlet—handy when you move between locations.
Built-in Controls and OLED Screen — No App Needed
If you prefer straightforward physical controls, this unit gives you buttons and an OLED screen to adjust amperage and delay charging without installing or configuring an app. You’ll see real-time charging information directly on the screen, which is useful if you want quick status checks without pulling out your phone.
Wide Vehicle Compatibility (J1772 Standard)
The built-in J1772 connector works with virtually all plug-in hybrid and battery EVs in North America, and you can use a Tesla adapter to charge Tesla vehicles. That makes the charger broadly useful if you own different EV types now or plan to in the future.
Safety and Certifications (CSA, Energy Star, FCC)
This charger carries CSA testing, an Energy Star efficiency rating, and FCC certification, which means it has passed recognized safety and electromagnetic standards. It also includes multiple safety sensors to protect against common hazards while charging.
Weather Resistance and Durable Build (NEMA 4)
With a NEMA 4 enclosure rating, the device is built to withstand dust, snow, and rain, so you can safely use it outdoors when weather requires. That rating gives you more flexibility about where you install or store the unit compared to indoor-only EVSE options.
Cable, Accessories, and Storage
A 22-foot J1772 extension cable in blue is included, plus a zip case and mounting hardware, so you get everything needed for home mounting or travel. The compact, lightweight design is intended to make it easy to store in a trunk or frunk when you’re on the move.
Technical Specifications
Below you’ll find a clear breakdown of core specs so you can compare at a glance and confirm this model meets your electrical setup and expectations. These specs summarize the product’s electrical range, compatibility, ratings, and accessory list.
| Specification | Detail |
|---|---|
| Model | Flex-AC LE Level 2 EV Charger |
| Amperage Settings | 8 / 12 / 16 / 24 / 32 / 40 A (user selectable) |
| Maximum Output | 9.6 kW (at 40 A, 240 V) |
| Connector | J1772 standard plug (built-in) |
| Included Plugs/Adaptors | NEMA 14-50 plug; NEMA 5-15 adaptor |
| Extension Cable | J1772 extension cable, 22 ft (Blue) |
| Certifications | CSA Tested, Energy Star, FCC Certified |
| Enclosure Rating | NEMA 4 (indoor/outdoor) |
| Controls | On-unit buttons, OLED display; no app required |
| Mounting | Wall-mount kit included; portable with zip case |
| Weather Protection | Rated for dust and water exposure |
Use this table to verify that the amperage and connector match your home outlets and vehicle capabilities before purchasing. If you’re unsure about your circuit capacity, consult an electrician so you don’t overload a breaker or outlet.
Charging Performance and Real-World Speeds
Real-world charging speed depends on the amperage you set, the supply voltage, and your vehicle’s onboard charger limits. The Flex-AC LE’s fastest setting gives you 9.6 kW on a 240 V circuit, but actual delivered power can be lower because many EVs accept a limited AC input and battery state-of-charge affects rate.
Below is a practical table showing approximate full-charge times for common battery sizes at various charger output levels. These are estimated times calculated as battery capacity (kWh) divided by delivered power (kW) and assume perfect conditions. Real-world times will be longer due to charging taper near full state-of-charge and vehicle onboard limitations.
| Battery Capacity (kWh) | 1.92 kW (8 A) | 3.84 kW (16 A) | 5.76 kW (24 A) | 7.68 kW (32 A) | 9.6 kW (40 A) |
|---|---|---|---|---|---|
| 40 kWh | ~20.8 h | ~10.4 h | ~6.9 h | ~5.2 h | ~4.2 h |
| 60 kWh | ~31.3 h | ~15.6 h | ~10.4 h | ~7.8 h | ~6.3 h |
| 75 kWh | ~39.1 h | ~19.5 h | ~13.0 h | ~9.8 h | ~7.8 h |
| 100 kWh | ~52.1 h | ~26.0 h | ~17.4 h | ~13.0 h | ~10.4 h |
Think of these as broad examples: a 40 kWh pack (common in compact EVs) could get from near-empty to full in roughly 4–10 hours on Level 2 depending on your amperage setting, while very large packs (like 100 kWh) will take substantially longer. Also remember that if your vehicle’s onboard AC charger caps out at 3.6 kW or 7.2 kW, the charger’s higher output won’t speed things up beyond that onboard limit.
Installation and Setup
You’ll find setup straightforward if you use the NEMA 14-50 plug on a properly sized dedicated circuit; plug, set amperage, and start charging. For permanent, hardwired installation you’ll want a licensed electrician, but for most people the included NEMA plugs make the unit immediately usable.
Key steps you’ll take when setting up:
- Verify the outlet type: 14-50 for 240 V high-power charging, 5-15 for 120 V low-power charging.
- Confirm circuit rating: a 40 A continuous charging setting typically requires a 50 A breaker and appropriately sized wiring (e.g., 6 AWG copper) per electrical code—consult a local electrician to confirm.
- Mounting: use the included wall-mount brackets if you want a semi-permanent home installation; if you plan to move it frequently, keep it portable in the zip case.
- Set amperage on the unit: use the on-device buttons to match the circuit capacity and prevent tripping breakers.
Always prioritize safety: do not use the 14-50 plug on an undersized or shared circuit, avoid extension cords on the power plug side, and follow local electrical code. If you’re unsure about outlet or breaker compatibility, you should have an electrician inspect or install a dedicated circuit.
Using the Controls and OLED Screen
You’ll appreciate the simplicity if you prefer physical controls over smartphone apps; the OLED screen shows charging status and the buttons let you change amperage and set delayed start times. This can be faster and more reliable than dealing with app logins or cloud dependencies, especially when you’re traveling or have limited mobile reception.
Typical controls include:
- A set button to cycle through amperage presets.
- A start/stop or confirm button to initiate or halt charging.
- Delay timer buttons to schedule charging during off-peak hours.
- Real-time readouts for current amperage, elapsed charging time, and power draw on the OLED display.
Because these functions are local to the device, you’ll always have immediate control even if you don’t have phone service or the manufacturer discontinues an app.
Portability and Travel Use
If you travel regularly in your EV or switch parking spots frequently, the Flex-AC LE is built with that use-case in mind: it’s portable, fits into storage spaces like a trunk or frunk, and includes adaptors that expand your charging options while on the road. The zip case keeps everything organized and protects the components during transit.
Think of typical travel scenarios where this helps:
- Plug into a 14-50 outlet at an RV park overnight to add several dozen miles while you sleep.
- Use the 5-15 adapter at a friend’s home for slow overnight charging when no 240 V outlet is available.
- Carry the unit in your vehicle and take it to a rental property where you don’t have an installed EV charger.
You’ll want to minimize exposure to harsh conditions while transporting the unit and avoid leaving it plugged into unmonitored public outlets overnight without checking the outlet’s safety.
Safety Features and Certifications Explained
The charger’s CSA testing, Energy Star rating, and FCC compliance give you confidence that it meets recognized standards for safety, energy efficiency, and electromagnetic compatibility. In addition, it includes multiple internal safety sensors—such as overcurrent and overtemperature protection—that will stop charging if a hazard is detected.
What these protections mean for you:
- CSA tested: an independent safety body has evaluated the unit’s electrical safety.
- Energy Star: the charger meets efficiency standards that can reduce standby losses.
- FCC: the unit meets limits for radio frequency interference, reducing the risk of impacting other electronics.
- NEMA 4 enclosure: protects against accidental splash, rain, and dust ingress so you can leave it outdoors in reasonable conditions.
While certifications are reassuring, you should still inspect cords and connectors regularly, avoid using damaged outlets, and follow manufacturer guidance for maintenance and storage.
Pros and Cons
You’ll want to weigh the strengths and trade-offs to see if this model fits your priorities—portability and flexibility versus some limitations that come with a plug-in portable charger.
Pros:
- Portable and plug-and-play: ready to use with included plugs and travel-friendly storage.
- Wide amperage range: lets you match charging rate to outlet capacity.
- On-unit controls: no app required, quick adjustments on the device itself.
- Broad compatibility: J1772 fits nearly all non-Tesla EVs; Tesla works with an adapter.
- Certified and weather-rated: CSA, Energy Star, FCC, NEMA 4 for safer outdoor use.
Cons:
- Charging speed depends on your vehicle’s onboard charger; you may not always get the full 9.6 kW benefit.
- For continuous 40 A charging you’ll need a properly wired and sized 50 A circuit, which may require electrical work if you don’t already have one.
- Using a 5-15 adapter for 120 V charging is slow; it’s convenient but limited in practical range increases.
- If you prioritize smart features like remote start/stop and scheduling via an app, this unit’s appless design may feel basic.
Comparison with Similar Chargers
When you compare this charger to hardwired Level 2 units and app-driven portable units, you’ll notice trade-offs between simplicity, features, and raw power. Hardwired units can offer equal or greater power with a cleaner permanent install, while app-based models add remote controls and monitoring that some users prefer.
How this model stacks up:
- Against hardwired Level 2 EVSE: you get portability and no installation cost, but hardwired units look cleaner and may support higher continuous currents or integrated load management.
- Against app-connected portables: you lose remote convenience, but you gain reliability, offline control, and fewer dependency issues on app servers or accounts.
- Against lower-power portable chargers (3.6 kW): this unit can provide up to 9.6 kW, which is a significant speed advantage if your vehicle can accept it.
Choose this charger if you value portability and straightforward local controls more than remote smart features and home automation integration.
Who Should Buy This
You should consider this charger if you’re renting, move between residences, travel with your EV, or want a portable Level 2 solution without dealing with hardwiring. It’s also a good fit if you own an EV compatible with J1772 and want the flexibility to use 14-50 outlets when available.
Specifically, it’s ideal for:
- Renters who can’t install a permanent charger.
- Owners of second EVs where a plug-and-play unit is more cost-effective than installing dedicated wiring.
- Road-trippers or RV users who sometimes need to use 14-50 outlets.
- Drivers who prefer local controls and a straightforward setup without apps.
If you want built-in smart home integration or the fastest possible AC charging beyond 9.6 kW, a different solution might suit you better.
Common Questions and Troubleshooting
You’ll likely have practical questions about operation, adapters, and troubleshooting. Below are answers to common issues and how to handle them calmly and safely.
Q: Can you use the charger on a standard 120 V outlet? A: Yes, with the included NEMA 5-15 adapter you can, but expect much slower charging rates; use it only when 240 V isn’t available.
Q: What amperage should you select for a particular outlet? A: Match the charger’s amperage setting to the circuit’s safe continuous current rating (typically set the charger to 80% of the breaker amp rating). For example, a 50 A breaker often supports 40 A continuous EV charging.
Q: Will this charge a Tesla? A: Yes, using a J1772-to-Tesla adapter will let you charge Tesla vehicles at the available AC rate, subject to the Tesla’s onboard charging limit.
Q: The charger won’t start—what should you check? A: Confirm the outlet has power, check the breaker, ensure the plug is fully engaged, and verify the amperage setting doesn’t exceed the outlet rating. If a fault persists, check the display for error codes and consult the manual or support.
Q: Can you leave it outside permanently? A: The NEMA 4 rating allows exposure to rain and snow, but long-term outdoor exposure where the unit could be physically damaged or subjected to extreme temperatures is not recommended. Use a sheltered location if possible.
If you encounter error codes or repeated trips, contact manufacturer support and a licensed electrician to inspect the outlet and wiring.
Tips for Maximizing Charging Efficiency and Safety
You’ll get the best results by matching settings to your electrical setup and treating the unit with routine care. Small habits will extend its lifespan and keep charging efficient.
Practical tips:
- Set amperage conservatively to match your outlet and circuit rating—80% continuous load rule is commonly used for EV charging.
- Schedule charging during off-peak hours where electricity is cheaper if your utility offers time-of-use rates.
- Avoid using additional extension cords on the power side; they can overheat and are generally unsafe for continuous high-current use.
- Keep connectors clean and dry; store the charger in the zip case when not in use to prevent wear.
- In cold weather, pre-condition your vehicle battery to improve charging acceptance and reduce overall charge time.
Routine inspection of the cable and connectors for damage and ensuring the outlet remains in good condition will help prevent safety issues.
Warranty, Support, and Documentation
You should check the manufacturer’s specific warranty terms before purchase or registration, and keep documentation handy in case of issues. Certifications like CSA and Energy Star are positive signs, but warranty coverage and customer support responsiveness are also important factors in long-term ownership satisfaction.
What to do:
- Register your charger with the manufacturer after purchase if registration is available—this often helps with warranty claims.
- Keep a copy of the product manual and any receipts for service reference.
- Contact the vendor or support line if you encounter persistent faults or need replacement parts.
If warranty details are missing or unclear in the listing, ask the seller for written confirmation before you buy.
Final Verdict
If you want a flexible, portable Level 2 EV charger with easy on-unit controls, solid safety certifications, and the convenience of included adaptors, the Flex-AC LE Level 2 EV Charger is a strong contender. You’ll appreciate the plug-and-play portability and the broad compatibility, but plan for proper circuit sizing if you intend to use the maximum 40 A setting regularly.
In short, this model suits you if you value reliability and mobility over app-based smart features, and it’s particularly attractive for travelers, renters, and anyone who needs a portable Level 2 solution.
Disclosure: As an Amazon Associate, I earn from qualifying purchases.