Clore Automotive Jump-N-Carry JNC770R 1700 Peak vs Clore Automotive JNC345 Jump-N-Carry 3000A 12 (2026): Key Differences
Compare the Clore JNC770R and JNC345 jump starters. We analyze peak amps, weight, and engine compatibility using only published specifications to help you choose the right unit.
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The clore automotive jump n carry jnc770r 1700 peak vs jnc345 jump n carry comparison highlights two distinct approaches to vehicle rescue. Both are 12-volt jump starters from Clore Automotive. The JNC770R is a heavy lead-acid unit with long welding cables. The JNC345 is a compact lithium model with USB ports. One prioritizes raw cranking power and durability. The other focuses on portability and modern connectivity features for electronics.
Peak Amps
1,700 Peak Amps
3000A
Battery Type
Lead-acid (PROFORMER)
Lithium
Weight
23 pounds
2.65 pounds
Cable Length
68 inches
40 inches
Dimensions
22 x 18 x 9 inches
11.9 x 2.1 x 3.7 inches
Charging Ports
Built-in 3A charger
USB-C input, dual USB outlets
Choose the first if
- You need to jump-start large diesel or fleet vehicles requiring high cranking amps.
- You prefer long, heavy-duty cables for reaching batteries in tough positions.
- You want a rugged unit with a master on/off switch and automatic charging.
Choose the second if
- You need a portable unit that fits easily in a glove box or small trunk.
- You want to charge smartphones or tablets via USB while waiting for help.
- You need to revive a completely dead battery (0.0 volts) using the override function.
Verdict
Choose the JNC770R if you require maximum cramping power for large engines and durable, long cables. Pick the JNC345 if you value extreme portability, lithium technology, and the ability to charge personal devices. The JNC345 is better for general passenger cars, while the JNC770R suits heavy-duty applications.
JNC770R vs JNC345 Comparison Rounds
Peak Amps Output
Edge: Clore Automotive JNC345 3000A Lithium
The Clore JNC770R provides 1,700 peak amps, while the JNC345 delivers a significantly higher 3,000 peak amps. This difference matters when starting larger engines. The JNC345 is rated for up to 10.0-liter gasoline and diesel engines. The JNC770R does not list a specific engine displacement rating in its published specifications. Higher peak amperage generally means more power to turn over a stiff or cold engine. If you frequently work with large trucks or heavy equipment, the JNC345 offers more reserve power. The JNC770R’s 425 cranking amps are sufficient for many standard vehicles but lack the raw surge of the lithium unit.
Portability and Size
Edge: Clore Automotive JNC345 3000A Lithium
Size and weight vary drastically between these two units. The JNC770R measures 22 inches long, 18 inches wide, and 9 inches high, weighing 23 pounds. It is a large, heavy box. The JNC345 is compact, measuring 11.9 inches long, 3.7 inches high, and 2.1 inches wide, weighing only 2.65 pounds. You can easily store the JNC345 in a glove compartment or small tool bag. The JNC770R requires a dedicated trunk space or workbench area. For mobile mechanics or drivers who need a quick grab-and-go solution, the JNC345 is far more practical. The JNC770R is better suited for a fixed garage setup.
Cable and Clamp Design
Edge: Clore JNC770R 1700A Jump Starter
The JNC770R uses 68-inch long 2 AWG welding cable leads with heavy-duty Powerjaw clamps. These are thick, stiff cables designed for high current flow and durability in industrial settings. The JNC345 comes with 40-inch #6 AWG jumper cables with full-size clamps. The JNC770R’s cables are longer, allowing you to reach batteries in difficult spots without moving the vehicle. However, the JNC345’s cables are thinner and more flexible, making them easier to route around tight engine bays. The JNC770R also includes a separate charging cord (Model no. JNC350). The JNC345 relies on USB-C for recharging.
Battery Technology
Edge: Clore Automotive JNC345 3000A Lithium
Battery type affects maintenance and longevity. The JNC770R utilizes Clore PROFORMER Battery Technology, which is a lead-acid system. It includes a built-in 3A automatic charger and a master ON/OFF switch. Lead-acid units often require periodic maintenance charging to stay healthy. The JNC345 uses a Lithium battery. Lithium batteries hold their charge longer when not in use and do not suffer from the same sulfation issues as lead-acid. The JNC345 can jump start batteries down to 0.0 volts using an Override function. This feature is not listed for the JNC770R. Lithium technology generally offers a longer lifespan with less upkeep.
Additional Features
Edge: Clore Automotive JNC345 3000A Lithium
The JNC345 includes dual USB outlets for charging electronics, a built-in LED flashlight, and a 12-volt power outlet with a female adapter. It also comes with a carrying case. The JNC770R focuses on pure jump-starting power and includes a master switch to prevent battery drain. It does not list USB ports or a flashlight. If you need to charge a phone or use a light source during roadside repairs, the JNC345 provides these tools. The JNC770R is a dedicated tool with fewer frills. Its design prioritizes raw electrical output over convenience features. For users who want an all-in-one rescue tool, the JNC345 is more versatile.
Which Clore Jump Starter Fits Your Needs
You need to start large diesel or gas engines
Our pick: Clore Automotive JNC345 3000A Lithium
The JNC345 delivers 3,000 peak amps. It handles up to 10.0-liter gasoline and diesel engines. This high output ensures reliable starts for heavy-duty trucks and large fleet vehicles. The lithium battery provides substantial cranking power where lower amp units might fail.
You prefer heavy-duty clamps and long cables
Our pick: Clore JNC770R 1700A Jump Starter
The JNC770R includes 68-inch 2 AWG welding cables. It features heavy-duty Powerjaw clamps for a secure connection. The unit weighs 23 pounds and measures 18 by 9 by 22 inches. This size supports robust connections for larger battery terminals.
You want a compact unit with USB charging
Our pick: Clore Automotive JNC345 3000A Lithium
The JNC345 weighs only 2.65 pounds. It measures 2.1 by 3.7 by 11.9 inches. It includes dual USB outlets for electronics. It also features a built-in LED flashlight and a 12-volt power outlet. This makes it versatile for camping or emergencies.
Clore JNC770R 1700A Jump Starter
Best for: Users needing long cables and heavy-duty clamps
- Peak Amps
- 1,700 Peak Amps
- Voltage
- 12 Volt
- Dimensions
- 22 × 18 × 9 inches
- Weight
- 23 pounds
The Clore Automotive JNC770R is a 12-volt jump starter delivering 1,700 peak amps and 425 cranking amps. It uses PROFORMER battery technology and includes 68-inch 2 AWG welding cable leads with heavy-duty Powerjaw clamps. Weighing 23 pounds and measuring 22 by 18 by 9 inches, it features a built-in 3A automatic charger and a master switch. This unit suits users needing robust clamps and long cables for larger vehicles.
- 1,700 Peak Amps output
- 425 Cranking Amps
- 68-inch 2 AWG Welding Cable Leads
- Built-in 3A Automatic Charger
- Lower peak amp rating than the 3000A competitor
- Heavier 23-pound build compared to lighter alternatives
- Larger dimensions at 22 inches long
- You need heavy-duty Powerjaw clamps for difficult connections
- You require 68-inch cables for larger engine bays
- You want a built-in automatic charger for maintenance
- You need peak amps higher than 1,700
- You prefer a lighter unit under 23 pounds
- You want a more compact size than 22 inches
Verdict: The Clore JNC770R 1700A Jump Starter offers solid 1,700 peak amps and durable clamps for users prioritizing cable length and clamp quality over maximum power output.
Clore Automotive JNC345 3000A Lithium
Best for: Large gas and diesel engine starting
- Peak Amps
- 3000A
- Voltage
- 12 Volt
- Gas Engine Rating
- up to 10.0-Liter
- Diesel Engine Rating
- up to 10.0-Liter
- Battery Type
- Lithium
- Dimensions
- 11.9 × 2.1 × 3.7 inches
The Clore JNC345 is a 12-volt lithium jump starter rated for 3000 peak amps. It handles engines up to 10.0 liters for both gas and diesel. The unit includes 40-inch #6 AWG jumper cables with full-size clamps to ensure solid power delivery. You can recharge it quickly via USB-C. It also features dual USB outlets and a built-in LED flashlight for convenience.
- 3000A peak current rating
- Starts up to 10.0L gas and diesel engines
- Includes 40-inch #6 AWG heavy-duty jumper cables
- Fast USB-C recharging capability
- Override function for totally dead batteries
- Lower peak amp rating than the 4000A option on the list
- Heavier at 2.65 pounds compared to lighter lithium models
- Larger physical footprint with 11.9-inch length
- You need to start large gas or diesel engines up to 10.0 liters
- You want heavy-duty jumper cables included for better connection
- You need to jump-start batteries that are completely dead
- You require the highest possible peak amp rating available
- You prefer a lighter and more compact portable unit
- You only need to jump-start small gasoline engines
Verdict: The Clore JNC345 3000A Lithium Jump Starter suits you if you need robust power for large engines and durable cables. It is a practical tool for heavy-duty starting tasks.
Specifications side by side
| Spec | Clore JNC770R 1700A Jump Starter | Clore Automotive JNC345 3000A Lithium |
|---|---|---|
| Peak Amps | 1,700 Peak Amps | 3000A |
| Voltage | 12 Volt | 12 Volt |
| Gas Engine Rating | – | up to 10.0-Liter |
| Diesel Engine Rating | – | up to 10.0-Liter |
| Battery Type | – | Lithium |
| Dimensions | 22 × 18 × 9 inches | 11.9 × 2.1 × 3.7 inches |
| Weight | 23 pounds | 2.65 pounds |
| Size | JNC770R | 4000A |
| Color | Red | Black/Blue |
| Model | JNC770R | JNC345 |
Frequently asked questions
Which jump starter is lighter and more portable?
The JNC345 is significantly lighter and more compact. It weighs only 2.65 pounds and measures 11.9 inches in length. The JNC770R is much heavier at 23 pounds and larger in overall dimensions. You should choose the JNC345 if portability and easy storage are your main priorities.
Can the JNC770R start large diesel engines?
The data does not list a specific diesel engine rating for the JNC770R. It provides 1,700 peak amps and is best for users needing long cables and heavy-duty clamps. The JNC345 is explicitly rated for large diesel engines. If you need to start big diesels, the JNC345 is the safer choice.
What is the difference in cable length between the two models?
The JNC770R features long welding cables designed for heavy-duty use. Its physical size is 22 inches long, allowing for ample cable reach. The JNC345 is a compact lithium unit. While specific cable lengths are not listed, its small form factor suggests shorter, more manageable cables for quick access.
Is the JNC345 a lithium or lead-acid battery?
The JNC345 uses a lithium battery type. This allows it to be much smaller and lighter than traditional lead-acid units. The JNC770R is a heavier unit typical of lead-acid technology. You should select the JNC345 if you want a modern, lightweight power source for jump-starting.
Which model is better for starting 10-liter gas engines?
The JNC345 is rated for up to 10.0-liter gasoline engines. It delivers 3,000 peak amps to handle these large displacements. The JNC770R provides 1,700 peak amps. For a 10-liter gas engine, the higher output of the JNC345 ensures a more reliable start.
Does the JNC770R have a durable clamp design?
Yes, the JNC770R is best for users needing heavy-duty clamps. It includes durable clamps suitable for robust connections. The unit is red and measures 18 inches wide. If you prioritize clamp quality and cable length over raw power output, the JNC770R is the practical option.
See also
Where these figures come from
The price, the list price it is compared against and the specifications on this page are read from the Amazon product listing. Scores are out of 10, based on listed specifications and buyer feedback, and no product here has been handled or measured by us. The award ribbons are calculated across the products in this guide only, and each one states the figure it was based on.
