We researched and compared the top battery chargers for the 5.7 HEMI Charger based on manufacturer specifications, industry standards, and aggregated owner feedback. Our evaluation focuses on charging performance, durability, safety features, and ease of use. Whether you need a maintainer for storage or a fast charger for daily use, this guide will help you choose the right one.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Battery Tender Plus 021-0128 Best Overall 1.25A, 12V, automatic float mode |
9 | 🛒 Check Price |
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NOCO Genius G7200 Best for Fast Charging 2A/7.2A selectable, 12V, force mode |
8.7 | 🛒 Check Price |
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Schumacher SC1281 Best Value 30A engine start, 6A/2A charge, 12V |
8.4 | 🛒 Check Price |
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CTEK MUS 4.3 Premium Choice 4.3A, 12V, 8-step charging program |
8.1 | 🛒 Check Price |
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Black+Decker BC15BD Multi-purpose Option 15A engine start, 10A/2A charge, 12V |
7.8 | 🛒 Check Price |
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Deltran Battery Tender Junior 021-0123 Budget Pick 0.75A, 12V, automatic float mode |
7.3 | 🛒 Check Price |
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NOCO Boost HD GB70 Portable Power 2000A peak, 12V lithium jump starter with USB charger |
7 | 🛒 Check Price |
1. Battery Tender Plus 021-0128: Best Overall
The Battery Tender Plus 021-0128 is a popular choice among 5.7 HEMI Charger owners for maintaining battery health during storage. In our evaluation, its 4-step charging program ensures a safe, automatic transition to float mode, preventing overcharging. Based on owner feedback, it works well for seasonal vehicles and short trips. The spark-proof and reverse polarity protection add an extra layer of safety.
However, with only 1.25A output, it is not designed to quickly recharge a deeply discharged battery. Owners who need a rapid charge after a dead battery should consider a higher-amperage model. This charger is best for those who want a dependable maintainer rather than a fast charger.
- 4-step charging program: initialization, bulk charge, absorption, float
- Spark-proof and reverse polarity protection
- LED indicator for charge status
Pros: Reliable float mode prevents overcharging; Compact and easy to mount; Widely trusted by owners
Cons: Low amperage not suitable for fast charging a dead battery
2. NOCO Genius G7200: Best for Fast Charging
The NOCO Genius G7200 offers flexibility with selectable 2A or 7.2A charging. In our research, the force mode is particularly useful for reviving a battery that has been drained below 1 volt, a common issue with infrequently driven Chargers. Based on owner feedback, the digital display helps monitor charging progress, though some find it dim in bright light. The charger is compatible with multiple battery types, making it flexible.
However, the 7.2A setting may generate more heat during prolonged use, and the unit is bulkier than basic maintainers. Owners who primarily need a maintainer may find the features excessive. This charger is ideal for those who occasionally need a faster recharge or have a deeply discharged battery.
- Dual amperage selection (2A or 7.2A)
- Force mode for charging deeply discharged batteries
- Integrated digital display with battery percentage
Pros: Higher 7.2A charge rate for faster charging; Force mode recovers sulfated batteries; Works with AGM, gel, and flooded batteries
Cons: Display can be hard to read in direct sunlight
3. Schumacher SC1281: Best Value
The Schumacher SC1281 provides a balance of charging and engine start capabilities at a reasonable price point. Our evaluation shows that the 30A engine start mode can help start a 5.7 HEMI with a weak battery, though it is not a replacement for a dedicated jump starter. Based on owner feedback, the automatic voltage detection works reliably, and the multi-stage charging helps extend battery life.
However, the plastic housing and connector feel less durable compared to more expensive models. Some owners report that the clamps could be sturdier. This charger is best for budget-conscious owners who want both charging and starting assistance without breaking the bank.
- Engine start function up to 30A
- Automatic voltage detection for 6V or 12V
- Multi-stage charging for optimal battery health
Pros: Engine start feature can jump-start a weak battery; Affordable for the features offered; Simple controls with LED indicators
Cons: Build quality feels less premium than competitors
4. CTEK MUS 4.3: Premium Choice
The CTEK MUS 4.3 is a premium charger with an 8-step charging program that adapts to temperature and battery condition. In our research, its temperature compensation is a standout feature for owners in extreme climates, ensuring the battery receives the correct voltage. Based on owner feedback, the splash-proof design gives added security for garage or outdoor use. The diagnostic mode can identify a battery that needs replacement.
However, the price is significantly higher than many competitors with similar amperage. The interface lacks a digital display, relying on LED lights, which some find less informative. This charger is best for owners who prioritize advanced charging technology and durability over cost.
- 8-step fully automatic charging cycle
- Temperature compensation for optimal charging
- IP65 splash-proof and dust-resistant
Pros: Advanced charging algorithm prolongs battery life; Rugged construction suitable for harsh environments; Diagnostic features detect battery condition
Cons: Higher price compared to similar amperage chargers
5. Black+Decker BC15BD: Adaptable Option
The Black+Decker BC15BD offers a range of functions including engine start, charging, and diagnostics. In our evaluation, the alternator check is a useful tool for troubleshooting charging system issues on the 5.7 HEMI. Based on owner feedback, the reconditioning mode has mixed results but can help extend battery life in some cases. The 10A charge rate is a good compromise between speed and safety.
However, the fan is audible during use, which may be bothersome in quiet environments. The clamps are adequate but not heavy-duty. This charger is best for owners who want diagnostic capabilities and occasional engine start assistance, but it may not be the most durable for frequent professional use.
- Engine start with 15A boost
- Alternator check function
- Battery reconditioning mode
Pros: Includes alternator and battery diagnostic features; Reconditioning mode can restore some sulfated batteries; Decent charge rate for faster top-ups
Cons: Fan noise can be noticeable during operation
6. Deltran Battery Tender Junior 021-0123: Budget Pick
The Deltran Battery Tender Junior is an entry-level maintainer that works well for keeping a fully charged battery topped off during storage. In our research, its 0.75A output is sufficient for maintaining but not for recharging a depleted battery. Based on owner feedback, the quick-disconnect harness is convenient for permanent installation on a 5.7 HEMI. The automatic float mode ensures safe long-term connection.
However, the low amperage means it can take days to charge a dead battery, and it lacks advanced features like desulfation. The clamps are small and may not fit all terminal types securely. This charger is best for owners who only need a simple maintainer for a vehicle that is driven regularly, not for those with a dead battery.
- Compact and lightweight design
- Automatic float mode prevents overcharging
- Includes quick-disconnect harness for permanent installation
Pros: Very affordable; Easy to store and use; Good for maintaining a stored battery
Cons: Very slow charge rate (0.75A) not suitable for recharging dead batteries
7. NOCO Boost HD GB70: Portable Power
The NOCO Boost HD GB70 is a portable lithium jump starter rather than a conventional charger. In our research, it provides 2000A peak current, enough to start a 5.7 HEMI even with a deeply discharged battery. Based on owner feedback, it is reliable for emergency situations and includes safety features like spark-proof technology. The USB ports allow charging phones or tablets, adding versatility.
However, it does not offer the long-term battery maintenance or desulfation that a plug-in charger provides. The internal battery requires periodic recharging, and the unit is more expensive than many basic chargers. This product is best for owners who want a portable emergency starter and already have a maintainer for regular use, not as a standalone charging solution.
- Jump starting up to 8-liter gas engines
- USB-C input and USB-A output for device charging
- Spark-proof and reverse polarity protection
Pros: Portable and can be used anywhere; Can jump-start the 5.7 HEMI multiple times on a single charge; Built-in LED flashlight
Cons: Not a traditional battery charger; cannot maintain or desulfate
Frequently Asked Questions
Can I use any battery charger on my 5.7 HEMI Charger?
Most 12V automatic chargers work, but ensure the charger is compatible with your battery type (flooded, AGM, or gel) and has sufficient amperage. For the 5.7 HEMI, a charger with at least 2A for maintenance or 10A for faster charging is recommended. Avoid using manual chargers that can overcharge.
How long does it take to charge a dead battery on a 5.7 HEMI?
Charging time depends on the charger’s amperage and battery capacity. A 2A charger can take 12-24 hours, while a 10A charger may take 4-6 hours. For deeply discharged batteries, some chargers have a force mode to recover them, but a jump starter may be faster for immediate starts.
Is it safe to leave a battery charger connected overnight?
Yes, if the charger has an automatic float or maintenance mode that switches to a low voltage when the battery is full. Most modern chargers like the Battery Tender Plus or NOCO Genius are designed for long-term connection. However, always follow the manufacturer’s instructions.
What is the best battery charger for a 5.7 HEMI Charger that is stored for winter?
For winter storage, a maintainer with automatic float mode is ideal. The Battery Tender Plus or Deltran Junior are popular choices. They keep the battery topped off without overcharging. Ensure the charger is rated for outdoor use if stored in a non-climate-controlled area.
Do I need a special charger for an AGM battery in my Charger?
Many modern chargers have AGM settings. The NOCO Genius G7200 and CTEK MUS 4.3 are compatible with AGM batteries. Using a charger not designed for AGM can reduce battery life. Check the charger’s specifications before use.
Our Verdict
After researching and comparing, the Battery Tender Plus 021-0128 is our top pick for overall reliability and safety for maintaining your 5.7 HEMI Charger’s battery. For faster charging and versatility, the NOCO Genius G7200 is an excellent runner-up, especially if you need to revive a deeply discharged battery.
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