70mai Car Battery Jump Starter & Power Bank
Compact 11,100 mAh emergency jump starter with smart clamps and 600A peak current to start flat batteries without another car.
By Trovly editors · Last reviewed 26 Oct 2026
Our take
Low winter temperatures reduce chemical battery efficiency by up to 30%, leading to unexpected sluggish morning starts. This glovebox pack cranks up to 4.0L petrol engines independently.
Skip it if
- You drive a 3.0L+ diesel SUV or commercial vehicle needing 1000A+ current.
- You park in a heated home garage with a dedicated trickle charger.
Where to buy
Trovly may earn a commission if you buy through these links. It doesn't change the price you pay or which products we pick. As an Amazon Associate I earn from qualifying purchases.
Who it's for
Daily drivers who want independence from roadside jump assistance in winter.
- Works with ·
- 12V cars, hatchbacks, sedans, compact SUVs, and motorcycles
Good
- 600A peak current starts petrol engines up to 4.0L and diesel up to 2.0L
- Reverse-polarity and spark-proof smart clamps for safety
- Doubles as an emergency LED torch and USB phone power bank
Not so good
- Must be kept above 50% charge to ensure reliable cranking
- Larger diesel engines (above 2.0L) need heavy commercial boosters
Specifications
- Battery Capacity
- 11,100 mAh (41.07 Wh)
- Peak Current
- 600A
- Start Current
- 250A
- USB Output
- 5V / 2.4A
Show all 5 specsShow fewer
- Weight
- 414 g
How we tested it
We haven't published testing notes for this product.
Buying guides
Automotive · 2 min read
Winter car care and safety essentials
Cold-weather tyre pressure drops, fogged windscreens, and sluggish batteries: a concise routine and 3 practical tools for winter driving.Automotive · 2 min read
Essential highway road trip preparation
Before you hit the expressway: navigation stability, high-wattage device power, and roadside tyre puncture recovery.Automotive · 2 min read
Keeping your car cabin clean and dust-free
AC vent dust, floor grime, and muddy mats: a fast 10-minute car cabin cleaning routine with three dedicated tools.
Editor's pick
New
New
Editor's pick