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ECS AUTO PARTS
ECS AUTO PARTS A40 Wireless Portable Car Jump Starter

ECS AUTO PARTS A40 Wireless Portable Car Jump Starter

Best price now

$92.99at Locksmith KeylessObserved at 7:57 AM

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Our take on the ECS AUTO PARTS A40 Wireless Portable Car Jump Starter

The ECS AUTO PARTS A40 is a portable lithium jump starter rated at 420A starting current and 850A peak, enough for most four-cylinder cars and many V6s. It charges over USB-C at 9V/2A and doubles as a power bank with Quick Charge 3.0 output. Its 44.4Wh battery is small for a jump pack, so expect a few jumps per charge rather than a dozen. The best new price is $92.99 at Locksmith Keyless as of November 8, 2026, and only one store lists it new, so there is no recent price range to compare against.

Best forDrivers of four-cylinder cars and small SUVsKeeping in the trunk for cold-morning no-startsCharging a phone on the roadBuyers who want USB-C charging
Pros
  • 850A peak is enough for most gasoline engines
  • USB-C input at 9V/2A recharges faster than older micro-USB packs
  • QC 3.0 output charges phones and tablets
  • Rated to work from -20°C to 60°C
  • Compact enough to store in a glovebox
Cons
  • 44.4Wh capacity is small; expect limited jumps per charge
  • 420A starting current may struggle with larger V6 or V8 engines
  • Only one store sells it new, so price comparison is thin
  • No listed case, cables or accessories in the specs

ECS AUTO PARTS A40 Wireless Portable Car Jump Starter prices at every store

  • Locksmith KeylessNew

    In stock

    $92.99Observed at 7:57 AM
    Visit Locksmith Keyless

ECS AUTO PARTS A40 Wireless Portable Car Jump Starter price history

Lowest price we've seen: $92.99 on Nov 8 at Locksmith Keyless. Tracked across 1 store since Nov 8.

Specifications

Capacity
3.7V 44.4Wh
Input
Type -C 9V/2A
Output
QC 3.0 9V/2A,5V/2A
Start Current
420Amps
Peak Current
850Amps
Operating Temperature Range
-20°C~60°C

Questions and answers

Will it start a V8 truck?
Probably not reliably. The 420A starting current suits four-cylinder cars and many V6s, but a large V8 needs more cranking current than this pack is rated for.
How many jumps per charge?
The 44.4Wh battery is small for a jump starter. Expect a few jumps on a full charge, and recharge it every few months so it is ready when needed.
How do I charge the jump starter itself?
Through its USB-C port at 9V/2A. A standard USB-C charger works; a higher-wattage PD charger will not exceed the pack's input rating.
Can I use it as a power bank?
Yes. The QC 3.0 output at 9V/2A or 5V/2A charges phones and other USB devices.
Is $92.99 a good price?
Only one store lists it new at $92.99 as of November 8, 2026, so there is no recent price history to judge against. Compare it with similarly rated 800A-class jump starters before buying.
Does cold weather affect it?
It is rated for -20°C to 60°C, but lithium packs lose output in deep cold. Keep it inside overnight in winter rather than leaving it in a freezing car.
Where is the ECS AUTO PARTS A40 Wireless Portable Car Jump Starter cheapest?
At Locksmith Keyless, for $92.99, as of our latest check.