Clore Automotive Jump-N-Carry JNC660 1700A Jump Starter
A legacy lead-acid jump starter with real amps but significant weight and maintenance tradeoffs versus modern lithium units.
- Skip: modern lithium jump starters do the same job lighter and without lead-acid maintenance
- 1700 peak amps is strong, but NOCO lithium units deliver comparable real-world performance
- Very heavy at 18 lbs versus 1-2 lbs for NOCO units
Best For / Not For
Best for
- Professional mechanics who specifically prefer lead-acid jump starters
- Buyers who distrust lithium battery reliability in extreme cold
- Anyone with an existing lead-acid jump starter habit they do not want to change
Not for
- Most buyers who want a portable, compact unit to keep in their vehicle
- Anyone who does not want to maintain a lead-acid battery
- Buyers with no existing reason to prefer lead-acid over lithium
Key Details
Why We Skip It
The JNC660 was the right answer for years. Lead-acid delivered real amps reliably, and the alternatives were worse. That is no longer the case. The NOCO GB40 and GB50 deliver comparable real-world jump starting performance at 2% of the weight and without lead-acid maintenance requirements.
The only remaining advantage for lead-acid is performance in extreme cold. Below about -20F, lithium batteries lose significant capacity. For drivers in extreme northern climates who regularly face those temperatures, lead-acid still has a case.
When to Buy It Anyway
Buy the JNC660 if you work in a professional shop context, operate in extreme cold below -20F regularly, or have a strong preference for lead-acid reliability that lithium has not earned your trust to replace.
Pros and Cons
Pros
- 1700 peak amps from a proven lead-acid design
- Works in extreme cold better than lithium under very harsh conditions
- Long track record with professional mechanics
Cons
- 18 lbs versus 1-2 lbs for equivalent NOCO lithium units
- Lead-acid battery requires periodic maintenance charging
- No longer the clear performance leader since lithium jump starters matured
- Much larger than any lithium alternative
Bottom Line
Skip the Clore JNC660 for most uses. Modern lithium jump starters do the same job at a fraction of the weight without lead-acid maintenance. The JNC660 earns a look only for professional shop use or extreme cold climates.
