Clore Jump-N-Carry JNC770R Jump Starter Review
A 1,700-peak-amp, 425-cranking-amp lead-acid booster pack with 68-inch #2 AWG cables, a 3 A built-in charger and two USB ports.
By Watt Versus Editorial· Updated
This page was drafted with AI assistance from manufacturers' specs and manuals, and is checked by our editor.
Our verdict
A shop and fleet booster with long cables that reach awkward battery posts and remote jump points. For a car trunk, a lithium starter such as the NOCO GB70 is a fraction of the weight.
Pros and cons
Pros
- 68-inch #2 AWG cables, against 46 inches on the JNC660
- Master on/off switch keeps the clamps dead in storage
- Two USB ports and a 12 V outlet
- Built-in 3 A charger plugs into a wall outlet
Cons
- 23 lb, heavier than the 18 lb JNC660 and far heavier than lithium starters
- Clore publishes no engine-size rating
- Lead-acid pack needs a recharge every three months in storage
Specifications
| Peak current | 1,700 A (425 cranking amps) |
|---|---|
| Battery capacity | Sealed lead-acid (Clore PROFORMER); amp-hour rating not listed by Clore |
| Cables | 68 in, #2 AWG welding cable, PowerJaw clamps rated to 1,000 A |
| USB output | 2 ports, 2.1 A and 1.1 A; plus a 12 V DC outlet |
| Recharge time | Built-in 3 A automatic charger; charge 24 hours before first use |
| Weight | 23 lb |
| Warranty | 1 year |
Who it suits
Repair shops, dealers, farms and fleets that jump vehicles every week. Clore lists 1,700 peak amps and 425 cranking amps, 68-inch #2 AWG welding cable with PowerJaw clamps rated to 1,000 A, a master on/off switch, a built-in 3 A automatic charger, two USB ports and a 12 V DC outlet. The long leads are the main reason to choose it over the JNC660; see JNC770R vs JNC660.
Who should skip it
Drivers who want a starter in the car. At 23 lb it is several times the weight of a lithium pack such as the NOCO GB70, which also comes with an engine rating. Clore's manual says the sealed lead-acid battery must be recharged after each use and every three months in storage.
What we could not confirm
Clore does not publish an engine-size rating, an amp-hour rating or dimensions for the JNC770R. Peak and cranking amps are Clore's own figures and are not measured the same way as lithium starters' peak amps.
Frequently asked questions
- How long are the Clore JNC770R cables?
- 68 inches of #2 AWG welding cable, according to Clore.
- How heavy is the JNC770R?
- 23 lb, by Clore's specifications.
- How often should you charge a Jump-N-Carry in storage?
- Clore's manual says to recharge it when new, after every use and every three months if it is not used.
Sources
The specifications and claims on this page come from these manufacturer documents. Figures are the manufacturers' own unless the text says otherwise.
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VS comparison
Clore Jump-N-Carry JNC770R Jump Starter vs Clore Jump-N-Carry JNC660 Jump Starter
Both are 1,700-peak-amp, 425-cranking-amp lead-acid booster packs with #2 AWG cables and a built-in charger. The JNC770R adds 22 inches of cable, a master switch and USB ports, for 5 lb more.
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