Talentcell Portable Power Bank NB7102, Multi Voltage Output Power Supply with DC & USB-C Port for Laptop, Smartphone, Camera

This is an excellent power bank. It holds a charge a very long time as described. Highly recommended product.

Very convenient and functional power supply. I purchased this battery supply to power my Spark 40 without having 120v available. It has many voltage outputs of with the 19v power must helpful for powering the Spark 40

I used this battery to power my Spark 40 guitar amp, but it has quit taking a charge. Great while it lasted, but I expected a long life! I held off posting a review hoping it would come back to life, but no luck. Update: The manufacturer is sending me a replacement - I couldn't ask for better service. I'm changing my rating to 5 stars. Good company!

Defective. Returned for refund. Failed to charge my iPhone, iPad and HP Laptop, even after over-night charging. USB-C port inoperative. LEDs on battery pack did not light as shown in illustrations.

Very versatile portable power. Be careful, though, about the polarity of whatever you want to power. When I used this with a guitar pedal and the supplied battery connector, it would not work. When I installed a polarity-changing adapter on the cable, it worked. Given that, I've purchased two of the batteries. If you have one of the original Spark 40 amps, this battery will power it for 4 hours or more. You'll need the polarity changer though.

I initially became aware of this battery 2 years ago , that it works perfectly for the Positive Grid "Spark 40" guitar practice and modelling amp. I like it so well, that i just bought a 2nd one that arrived today 9-14-25. This battery also works perfect for many devices with the supplied tips . I can only answer that the Talent battery pack works perfect on my Dell 13 inch Netbook perfectly. I am very pleased and it is a wonderful long lasting power source for my needs with the devices I use ( Dell 19 volt Laptop , and Spark 40 19 volt guitar amp ) VERY PLEASED AAAAAAA+++++++++

overall great product I even purchased a second battery because it works well and holds a long charge. the only downfall I have found and reason for 4 out of 5 stars is because it will not charge my Laptop ACER Zenbook Pro 15 OLED. The adaptor that will fit it is actually the HP adaptor however it glitches and doesn't have a secure adaption causing it to not work 98% of the time. Great product except the adaptors. Both batteries and adaptors have the same problem.

Asus Routers use 19.5VDC as an input. This works out perfect to provide backup power. And it had a large enough charger that it will charge the battery from low to full charge wile powering the Router. Works perfect, runtime is multiple hours for a Router and it is a lot smaller than a traditional ACP UPS, cheaper, and has longer run time since it is not wasting power converting DC to AC then Back to DC for the power brick on the router. Once it is turned on it will stay on. I have a couple of these to power a mesh WiFi in a work from home environment. No more loss of internet because of a power blink.

Best buy for sure. Easy to charge. Led for power level nice feature. Can bring my Spark 40 Amp anywhere.

Dernièrement, un derecho a frappé ma région et pour la première fois de ma vie, l'électricité a été coupé pendant presque 36h. Heureusement que j'avais cette batterie. Elle a été bien utile. J'ai été en mesure de recharger mon téléphone, ma tablette, un haut-parleur Bluetooth et mes 2 paires d'écouteurs. Quand la batterie est complètement déchargée, il faut environ 3h pour la charger avec l'adaptateur fourni. Selon l'angle, l'indicateur de charge n'indique pas bien. Par exemple sur la photo on voit 3 dels allumées mais il faut regarder bien en face, en réalité seulement 2 sont allumées. Quand toutes les dels sont éteintes, il faut recharger rapidement car il ne reste plus beaucoup de courant. Une chose agaçante, quand les prises USB sont dans le bon sens, l'indicateur de charge se retrouve en dessus (voir photo). Pas très pratique. La charge rapide est parfaite. Mon téléphone Samsung A50 passe de 20% à 90% en environ 1h08. Mon ordi portable se recharge très bien aussi grâce aux connecteurs fournis. Bizarrement, il n'est pas nécessaire d'appuyer sur l'interrupteur pour avoir du courant sur la prise DC2, le courant est toujours présent. Mais il faut appuyer sur l'interrupteur pour avoir du courant sur les prises USB-C et USB-A. J'aurais préféré que cette batterie se recharge aussi par USB-C (pour la recharger dans une voiture par exemple) et qu'elle utilise un panneau LCD pour indiquer la charge en pourcentage. Il y a peu de batteries portables qui offre le 19,5 Volt, c'est pourquoi, j'ai choisi celle-ci. Donc un bon achat, reste à voir la fiabilité à long terme.

Works with MPC ONE

I don't ever leave reviews but this was brutal. I used it to power a positive grid spark a few times then didn't use it for 6 months. After that, it wouldn't hold a charge. Plugged in until green charge lights are all lit then it dies right after unplugging it. In total I don't think I even got 4 hours use out of it. Some people seem quite happy with it, I guess I got a dud.

Very good product, but the usb-c don’t work. I’m not sure if all of them are like that or l just got the bad batch. That’s the only problem so far.