70mai Jump Starter – Automotive Roadside Emergency Equipment Review

Lithium Ion battery cells might be on the electric motor propulsion rise, supplanting Nickel Cadmium. However, 6 cell 12V lead acid batteries still provides the critical voltage to fire up the internal combustion ignition and run accessories for 99% of the world’s passenger vehicles, including those pesky petrol electric hybrids.

Extreme conditions take their toll on lead acid battery performance:

  • TIME – After 5 years typical passenger automotive use results in corrosion of the lead cathode plates, reducing the ability to hold charge current
  • HEAT – Ditto the effect of TIME (above)
  • COLD – Electrolyte passes current more slowly, while reduced engine lubrosity demands more electric current to crank
  • SHORT TRIPS – Sulfuric acid needed for cathode process stratifies at bottom of battery leaving upper lead plates only with water solution.

The recurrence of these extremes over time may necessitate a battery jump to start the vehicle. The traditional go-to is an available and willing running donor car with a pair of long jumper cables is one resource.  When the running donor isn’t available a portable jumper is the next best bet.

Automotive accessory distributor 70mai supplied Roadblazing.com editors with their latest portable car jumper, the  70mai Jump Starter by Xiaomi Youpin.

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70mai Jump Starter: DC to 12V lead acid battery post clip

70mai Jump Starter PS01 Specifications:

  • Electrical Storage: LiIon 11,100 mAh, 3.7 V, 41 Wh
  • Maximum Vehicle Jump Starts, from full charge: 40 jump starts
  • Automotive Electrical Compatability: 12 Volt
  • Start – Peak Current: 250 Amps – 600 Amps
70mai Jump Starter: 600 Cold Cranking Amp capacity, capable of 40 successive 12V lead acid battery jump starts per single charge
  • Battery: 500mAh
  • Ambient Temperature Range: -20C (-4F) to 55C (131F)
  • Personal Electronics Charging: 5V / 2.4 A
  • 110V / 240V AC & Portable Device Connectivity: USB-C
  • Dimensions: 6.38″ x 3.38″ x  1.0″ (161.93 mm x 85.73 mm x 25.4 mm)
  • DC Charge Cable w/ Clamps: 14.75″ (37.46 cm) length
  • Weight: 1.1 lbs (0.5 kg)

70mai Jump Starter PS01 Features

  • Smart DC Battery Cable w/ Clamps:  Monitor and limit jump current, voltage and unit charging; Protects against short circuit, overheating, reverse connection, over-current, over-charging
  • Personal electronic rechargeable device power bank
70mai Jump Starter: 11,000 mAh, USB-A to USB-C cable included
  • SOS Emergency LED
70mai Jump Starter: doubles as bright LED flashlight with Morse Code flashing capability
  • LED Status indicators
  • Carry pouch: Split compartment, velcro flap cover, hand strap

+1 Compact

+2 Lightweight

+3 Wide operating temperature range

+4 Doubles as portable electronic device power bank

-1 Short 11″ (28mm) DC car battery charging cable length

-2 Lacks 48 Volt compatibility for new high end vehicles


70mai Jump Starter: out of box with cables and carry pouch

70mai Jump Starter PS01

$52.99 = discounted price, plus $2.11 4PX ground shipping (from Aliexpress)
$99.98 = non-discounted price

ROADBLAZING.COM SAYS: “A portable battery jumper should be part of every car’s onboard roadside emergency kit.”

Interested in purchasing the 70mai Jump Starter at the promotional price?

Click on this 70mai Jump Starter link for AliExpress online shopping.

****The manufacturer provided a courtesy sample of the product used in this review. Roadblazing.com makes no warranty representations other than those by the manufacturer.****

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