Battery Equivalents and Replacements

Imazing IM27 Portable Car Jump Starter

Imazing IM27 Portable Car Jump Starter is a very popular and versatile car jump starter suitable for starting gas engines up to 8 liters and diesel engines up to 7.5 liters thanks to its builtin control electronics that protects the unit and the user from unwanted events and lithium polymer battery that stores up to 66 Wh of energy.

Imazing IM27 Portable Car Jump Starter also can act as a small portable power bank and even features a small LED flashlight. However, using car jump starters in general as power banks discharges the battery which is usually discharged too low when needed the most.

Because of its compact and lightweight design, strong battery, versatility, and affordable price, Imazing IM27 Portable Car Jump Starter is one of the most popular car jump starters in its class.

Updated: April 27, 2022.

imazing im27 jump starter 1

Imazing IM27 Portable Car Jump Starter Features and Specifications

Imazing IM27 Portable Car Jump Starter features physical dimensions of ~7.5 x 3.5 x 1.4 inches (191 x 88 x 36 mm) and it weighs ~1.14 pounds (518 grams).

Imazing IM27 car jump starter is intended for starting gas engines up to 10 liters and diesel engines up to 8 liters - it can easily start engines commonly found in cars, SUVs, boats, trucks, ATVs, RVs, etc.

The unit comes with a built-in lithium polymer battery being able to store ~66 Wh of energy (18Ah, ~3.7V), allowing the starter to crank the engine up to 30 times on a single battery charge.

Note: in real life, the number of engine starts depends very much on actual battery condition and charge, car battery condition, engine condition (cold, warm), local temperature, and similar - for most passenger vehicles, one may expect at least 8-10 successful starts on a single battery charge. And yes, after each start, it is highly recommended to let the battery cool down and recharge it right away.

If the starter doesn't crank the engine after 4-5 times, there is probably some other problem with the car, not just discharged the car battery. After each attempt, it is recommended to let the unit cool down for at least 2 minutes.

Note: Imazing IM27 car jump starter is very simple to use and maintain portable car jump starter, but when it arrives, be sure to read the manual thoroughly (just a few pages, so please, check it!) in order to get familiar with your new unit. Also, keep the manual in the carrying bag, just in case.

Imazing IM27 car jump starter is also a very safe car jump starter and features many safety features, including reverse polarity/connection, over-current, overload, over-voltage, over-charge, over-discharge, and short circuit.

Nonetheless, jump starters, in general, are designed to provide huge currents and despite their compact dimensions, they are NOT toys and NOT something to play with!

imazing im27 jump starter 2

Imazing IM27 car jump starter is recharged using a USB cable - cable comes with the unit, but not the wall/car USB charger. The unit requires 4.5 hours to fully recharge - the battery doesn't feature a memory effect and it has a very low self-discharge rate. Nonetheless, it is recommended to recharge the battery every 3 months, in order to prolong its operating life.

As a car jump starter, the Imazing IM27 car jump starter features a maximum peak current of up to 2000 Amps with a start current of up to 800 Amps, allowing the unit to crank surprisingly large engines.

As a portable power bank, the Imazing IM27 car jump starter features 4 (four) output ports, including:

- Output/Input: USB Type-C 3A,

- Output USB1: 5V/3A, 9V/2A, 12V/1.5A,

- Output USB2: 5V/2.1A,

- Output DC: 12V/10A.

Also, it features an LED flashlight with three modes including white light, SOS, and strobe.

Note: although Imazing IM27 Portable Car Jump Starter features a broad range of operating temperatures, it is NOT recommended to leave it in the car during winter freezing nights and during summer hot days - such extreme temperatures may harm the battery.

What's in the Box?

 in the box

When the Imazing IM27 car jump starter arrives, the box contains:

- 1 x Jump Starter,

- 1 x Carry Case,

- 1 x LCD Smart Clamp,

- 1 x Type C cable/Charge cable for a jump starter,

- 1 x Cigarette Lighter Adapter,

- 1 x User Manual.

Also, the Imazing IM27 car jump starter comes with a 2-year warranty.

Imazing Car Lithium Jump Starters

Imazing offers several car lithium jump starters which differ in several details, including size, battery capacity, output power, and similar.

Also, their prices differ depending on their performance and the number of features.

The following comparison chart lists some of Imazing the most popular models with their most important features and specifications:

Model Imazing IM27 Imazing IM29 Imazing IM31 Imazing IM39
 Photo imazing im27 table  imazing im29 table  imazing im31 table  imazing im39 m
Starting Current 800 Amps 1000 Amps 1100 Amps -
Peak Current 2000 Amps 2500 Amps 2500 Amps 4000 Amps
Recommended For Gas 8.0 liters
Diesel 7.5 liters
Gas 8.0 liters
Diesel 8.0 liters 
Gas 10.0 liters
Diesel 10.0 liters 
Gas 10.0+ liters
Diesel 10.0 liters
Battery 66.6 Wh 74 Wh 77.7 Wh 99 Wh
Number of Starts 10+ 10+ 10+ 10+
Input USB Type-C 3A
(Input/Output)
USB Type-C 3A
(Input/Output) 
DC: 18V/10A USB Type-C 3A
(Input/Output)
Output USB1: 5V/3A, 9V/2A, 12V/1.5A,
USB2: 5V/2.1A,
DC: 12V/10A
USB1: 5V/3A, 9V/2A, 12V/1.5A,
USB2: 5V/2.1A,
DC: 12V/10A 
USB1: 5V/3A, 9V/2A, 12V/1.5A,
USB2: 5V/2.1A,
DC: 12V/10A
DC: 110V/60Hz/100W
USB1: 5V/3A, 9V/2A, 12V/1.5A,
USB2: 5V/2.1A,
DC: 12V/12A
Charging USB Cable USB Cable Car Charger, Wall Charger USB Cable
Charging Time 4.5 hours 6 hours 6 hours 12 hours
Additional Features LED Flashlight
(Light, Strobe, SOS)
LED Flashlight
(Light, Strobe, SOS) 
LED Flashlight
(Light, Strobe, SOS)
Power Inverter
(110V, 60 Hz, 100W)
LED Flashlight
(Light, Strobe, SOS)
Dimensions 7.5 x 3.5 x 1.4 inches
191 x 88 x 36 mm
7.72 x 3.42 x 1.58 inches
196 x 87 x 40 mm 
9.05 x 4.80 x 1.65 inches
230 x 122 x 42 mm 
9.65 x 3.86 x 1.81 inches
245 x 98 x 46 mm
Weight 1.14 pounds
518 grams
1.42 pounds
644 grams
1.95 pounds
882 grams
3.25 pounds
1.47 kg
Operating Temperature -20°C to +60°C -20°C to +60°C  -40°C to +80°C  -
Charging Temperature 0°C to + 60°C 0°C to + 60°C 0°C to + 60°C -
Recommended Charging Temperature* Room Temperature Room Temperature Room Temperature Room Temperature
Amazon Link Imazing IM27 Imazing IM29 Imazing IM31 Imazing IM39

Note: Amazon links ("Model" column) open in the new window, feel free to check them for the most up-to-date offers and prices.

Note "*":  Lithium-ion batteries perform best at room temperature - if possible, charge ALL devices with lithium-ion batteries at room temperatures (15°C to 30°C) and keep them away from the sunlight!

As one can see, they are all very versatile units - personally, keep your jump starters fully charged and use other devices like power banks and solar generators for recharging devices like smartwatches, smartphones, tablets, laptops, and similar.


imazing im27 jump starter mLong Story Short: If You are looking for a reliable jump starter that can be also used as a high-capacity power bank, consider Imazing IM27 car jump starter.

It can come in very handy for anybody who likes outdoor activities like camping, fishing, and similar, but also for anybody who likes to be prepared.

For more reviews and recommendations, feel free to check the Imazing IM27 Portable Car Jump Starter Amazon link (link opens in the new window).

Amazon Search:

- Car Jump Starter

Note: Amazon link opens in the new window, feel free to check it for the most up-to-date offers and prices.