DBpower 2500a


After owning a few portable jump starters from DBpower, it was time to check out and review their latest, and best mini jump starter to date. It’s the DBPOWER G15 2500A. It has a huge 21800mAh internal battery. It may be small in size but it can jump-start car 8.0L gas engine or 6.5L diesel engine.

The big drawcard on this mini jump starter is its size. It’s literally the size of an iPhone 8 plus just a little thicker, so it can be stored away easily. If you have a small family 4-6 cylinder car, this is the emergency booster pack for you.

It is nice to see DBpower updating their older range of small jump starters like the DJS-40 300A into this new powerful beast.

So what can this little powerhouse do?

  • Ultra-Compact Jump Starter: Jump start your vehicle up to 8L gas engine up to 20 times with 2500 amps of peak current and heavy-duty clamps and cables. It’s compact enough to store in your glove box or under a car seat.
  • Powerful Power Bank: With 21800mAh internal capacity, it can charge phones, tablets, Kindles, and other devices at speeds of 2.1 amps per on the left USB port and faster on the smart USB3 port. You can recharge the G15 in just 5 hours using the included USB C cable and your phone charger. (Depending on phone charger rated output)
  • LED Flashlight: Built-in flashlight with 3 modes (high, strobe, and SOS), offers you more light in emergency situations.
  • Safety Protection: The Intelligent jumper clamps have Over Current Protection, Short Circuit Protection, Overload Protection, Over-voltage Protection, and Over-charge Protection. This means anyone can use it and feel confident that the boost pack will protect yourself and your car.
  • What’s in the Box: DBPOWER Powerful Jump Starter, Intelligent Jumper Cables, Android USB C Cable, Welcome Guide, fantastic 3-year warranty, and friendly customer service support.

DB Power 2500A Specs

ModelDBPower Portable Jump Starter G15 and G16
Color SelectionBlack and Red
Battery Capacity21800mAh
Current Peak2500A
Number of USB Charging PortsOne
Max Charging Speed

2.1A and Smart USB 3 charge port.

Smart 5V/9V/12V, 5V/2.1A, DC 12-16V/10A

LED FlashlightYes
Package Size7.5 x 3.5 x 1.4 inches
Weight 1.35 pounds
Warranty3 Years
Where to Buy 
buy from amazon

Best Mini Jump Starter Around.

Make sure you and your loved ones can get home when stranded, with a flat battery. This will jump-start your 8L gas engine up to 20 times on a single charge. So it’s not a one-shot wonder. Don’t carry around a large 5kg jump pack gets a powerful micro car starter.

  • Will start any 4-8 Cylinder petrol engines up to 8L

3 Modes Emergency LED Light
It has 3 modes LED light (high, strobe, and SOS flash), It’s an emergency life saver when you go camping, picnic, breakdown, or in a power blackout with no lights.

Compact Design
The streamlined design makes the appearance of a well-made starter. With blue power LEDs, you will immediately know how many power reserves you have left. The indicators are on the top surface, which makes it looks so cool and modern.

21800mAh Portable charger
It charges cellphones, tablets, kindles, and anything with a USB port. Charge your device together anywhere anytime. Use it in the car to recharge either your phone or your children’s devices. The included USB C cable works as a charger for both the unit and micro USB port devices.

Small Slim Footprint.
Unlike the large traditional bulky jump starter packs. The DBpower 2500A peak 21800mAh portable jump starter is small enough to store in your glove box and light enough to pack in your handbag or backpack. Compact enough to take with you as you go away on holiday. Use it to charge your devices as an emergency power bank. It’s as small as an iPhone 8 plus in size.

I know people who pack these up in their camera bag luggage when on a holiday. Serves 2 purposes, start your car and charge start your phone or camera.

Longest warranty around

At DB POWER, they provide a 3-year warranty and very user-friendly support staff. All the information is included in the user manual. You can download the DBpower G16 user manual from here

How to Recharge DBPower G15 Car booster.
DBpower G15 output USB

Make sure to charge this micro-jump starter at least once every 4 months. This will avoid shortening its lifespan. Keeping the battery pack topped up will reduce the battery from completely depleting over time. If you do use it to charge phones and tablets, it’s also a great idea to top it up.

Don’t keep it plugged into the charge port for extended periods of time. Just recharge and disconnect.
Try to store your car booster pack in a cool and protected place. Extreme temperatures may damage the internal battery. Under a passenger or driver’s seat or in the glove box are ideal locations.

The Dbpower 2500A mini battery jumper is compatible with 8L and lower gas engines. It can also start motorcycle, ATV and jet-skis. 

Check out the DBPower G15 in action.


If your car battery booster pack has less than 25% charge capacity, it may not be able to start your engine. This is because car starter motors require a large sustained in rush of current. With a nearly depleted lithium-ion jump starter, the reserve capacity will not be enough to start your vehicle.
Do not connect the positive and negative polarity together when it’s powered on. 

Be also aware of some fake DBpower units being sold on places like eBay. Make sure to buy from a repeatable store or online supplier like Amazon. The last thing you need is a failure in your compact jump starter.

DB Power Accessories

Package Contents:

  • DBPOWER G15 Portable Jump Starter
  • Jumper Clamps Set,
  • USB Type C Cable,
  • Semi-hard Case,
  • User Manual

How To Jump start a car

You can use this 2500A booster pack to jump start your car.

  1. Press the On/Off button and make sure your battery capacity is over 25% charged. Fully charged is the best for full power starting
  2. Insert the jumper cables into the 12v output jumping port.
  3. Connect the red clamp to the positive (+) terminal, and the black cable clamp to the negative terminal (-)
  4. Start your car with the key.
dbpower jump start procedure

Jump starting a Toyota Prius

Most gasoline or petrol cars will have the same procedure for boosting a flat battery. Where this change is if you have a hybrid car, like the Toyota Prius. It’s a slightly different procedure.

Basically, you have to locate the fuse box, which is on the right-hand side in the engine bay. Remove the cover and then find the main red battery terminal. Open the red flap, shown below and put your jump starter positive lead onto it.

Connect the negative to a metal part of the car, and you are good to try to jump-start your Toyota Prius. Once your car has started you can disconnect your starter leads and put the fuse cover back on. 

This DBpower 2500A is the perfect jump starter for your Prius. This is due to the smaller 1.8L engine, so it is well-sized for the job. So why do I recommend it, well it worked for a guy at work who had a flat auxiliary battery in his Prius and needed a jump start.

best jump starter for toyota prius
Red protection tab for jump start terminal on a Toyota Prius

I’m against using pure jumper cable leads, as so much can go wrong and there is no safety protection. So I just grabbed my micro-jump starter made by DBpower and put it on and we got it started. He was so amazed. I just gave it to him for a few days while he went to get his battery replaced.

Update: As so many of you had asked for a more detailed procedure on how to Jump Start a Toyota Prius as well as replace the Auxiliary battery in the rear boot. We have done a whole write-up on the steps required. You can read all about what’s involved.

DBPower 2500A Peak 21800mAh portable review

DBpower 2500a jump starting a vehicle

After using this unit for a few months I can honestly say it’s a great quality unit. I had given it to the kids to use for our road trip. They used it in the car to charge their phones and tablets a few times each day. By giving the compact starter a top-up each night, we could make sure it never missed a beat over the 7-day road trip. They thought it was one of the best mini jump starters they had ever used due to the compact size. Before we used a larger model which sometimes just was awkward and heavy.

Our Toyota Corolla is under 2.5L engine size so we were able to test it out using an old battery we installed into the car to simulate a flat battery.

The car fired up fast with plenty of power. We tried it a few more times and there was no loss of power from this little pocket-sized car battery jumper. The only problem i have doing tests like these is having to reprogram my car radio again.

Recharging the unit was simple and easy from either a phone wall outlet charger or the car cigarette lighter port if you have one. The micro USB port is the charge port and can recharge at the rate of 2.1 Amps depending on the charger type you use. The included cable is Micro USB so it can be used to either charge the unit or use it in reverse to charge phones and tablets. 

At the end of the day, this mini battery jumper is a keeper. As a brand DBpower is hard to beat. They make some top-rated jump starters as well other electronic gear, so they really know what they are doing. With over 600 positive reviews, you can rest assured knowing that you are buying a quality reliable unit.

Why we picked the DBPower over others?

The DB Power range of starters has been a favorite in our family. They just work and have never let us down. They also cater for the average man with realistic prices. We actually did a full comparison the other month on 5 of the Top Selling 8000mah pocket size jump starters and with all the features and price taken into effect, this starter came out in the top again. No wonder so many people give it 4 and 5-star reviews.


As this is the big brother model in the DBPower range it has the most grunt. If you would like some extra starting power or extra charge for your devices, check out our review of the smaller 1600A jump starter model. Both have that extra starting juice for 6 and 8-cylinder engines. They also have 2x USB out ports for multiple phone charging. Check them out if you need more features.

For a cheap pocket-size car battery jumper, you can’t go past this little gem. The DB Power 2500A is small and powerful. It is well suited for small to large-sized cars. It will do it all.

Remember the scout’s motto “BE PREPARED.” 

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