TalentCell Rechargeable 72W 100Wh 12V/8300mAh 9V/11000mAh 5V/20000mAh DC Output Lithium ion Battery Pack for LED Strip, CCTV Camera and More, Portable Li-ion Batteries with AC/DC Charger

I bought both the 8300mAh and 6000mAh talentcells, but only kept the 8300mAh to power my Nexstar Celestron 6SE telescope. br>br>I preferred the 8300mAh because it was more comfortable to wear - Because the USB and 12V connectors are next to each other, I was able to orient the battery pack so that I could plug it into the telescope mount via 12V while also charging my phone. The 12V and USB connectors on the 6000mAh model are on the opposite ends of the battery - One cable was rubbing against the top of the mount, putting strain on the connector no matter which way I oriented the battery pack. br>br>The 8300mAh capacity is slightly less than the 6000mAh capacity - The 8300mAh battery pack's corners are also nicely tapered. Because of the dimensional differences and the taper, securing the battery pack to the mount arm of my 6SE telescope was a lot easier. br>br>In addition, the 8300mAh model has a higher total amperage output - The 6000mAh battery pack has a current rating of 6A vs. 3A. I'm powering the mount, StarSense Alignment Camera, and SkyPortal Wi-Fi, which is overkill for the mount. At the same time, I'm using a Wi-Fi module and my smartphone! br>br>Because the LEDs are too bright for telescope use, your night vision may be harmed. So I put the battery pack on the front of the telescope, upside down, to hide the LEDs. br>br>I connected to the mount with this cable - The cable world included works, but it's too long for me:  .

Royce Hanna

| Aug 20, 2021

When you plug in the charger, the charging port produces a massive spark, which I was able to capture on slo-mo video. I created a motion video and emailed it to the manufacturer. They said it was perfectly normal! Is this for real? When a lithium battery is being charged, do sparks fly around it? br>br>To be clear, this happens whether I plug in the charger with the power switch on or off. Each time I plug it in, I hold my breath.

Aubrie O’NEILL

| Sep 20, 2021

TL; DR If you're looking for a low-cost Li-ion battery, this is the one to go with. If you only need a lithium-ion battery pack for light duty work, this should suffice; however, don't rely on the manufacturer's ratings for anything remotely critical. br>br>First and foremost, the lithium cells are of good quality (LG brand) and have a rated capacity of 2600mAh per cell, but this is where our first issue arises. There are a total of 86 cells within the nine cells. 58Wh (9. 62Wh/cell) of energy, resulting in a battery having only 87% of what it is rated for in the description, if you then de- rate a further 80% for maximum battery health that comes to only 70Wh (or just 2070% of what was advertised), this is even more of a problem given that the cost per 99 / (86. 58Wh / 1000), for example, high-quality Panasonic cells can be found for as little as $265 per kWh in volume. In short, they're not only claiming more capacity than is actually available (even if you're being overly optimistic), but they're also charging prices that are far higher than what similar battery cells would cost on consumer sites like dx. Alibaba. com or com. Essentially, it's the same kind of slim-down. shady practices that are prevalent throughout China Manufacturers of low-cost goods make an attempt to deceive. If you only need 70Wh and are willing to pay a premium, this is a good buy.

Adam Valentine

| Mar 13, 2021

Take this review with a grain of salt because the whole point of a rechargeable battery is that it performs well over time, so soliciting a review after a few weeks can reveal little when talking about an item that is supposed to last years. br>br>I use this unit outside to power an Arduino chipboard that accepts signals from the digital encoders on my telescope and sends them via Bluetooth to a tablet running a planetarium program, allowing me to see where the telescope is pointing. br>br>The Arduino box can run for up to 10 hours, and I move the scope about 100 times during a busy observing session. This application consumes the least amount of power possible. When all four green LED lights on the battery are lit, it indicates that it is fully charged. When I put the telescope away and use the battery, the four small lights remain lit. Although the wall charger indicates some drain, the slow-draining slow-draining slow-draining fast-draining fast- The charging unit (10 hours from flat) indicates that the battery will be fully charged in about an hour. In temperatures ranging from 40 to 80 degrees Fahrenheit, I've used the battery in both low and high humidity (heavy dew) conditions. 80degF. I'll be out in sub-zero temperatures at least once this winter (I've tested at 0degF), and if there's a significant difference, I'll update the review. br>br>I've followed the charging instructions (the battery must be turned on and the charger plugged into a 12V outlet), which is about the only possible operator error barring physical abuse. The battery has always performed as expected. br>br>So, yes, I would recommend this battery, assuming past performance is indicative of future results (note: past performance is not indicative of future results). If the $50 I paid is a good investment (a friend has had one of these batteries for two years and put it to the same use).

Winnie Murphy

| Dec 14, 2021

When using wall warts for power, I was sick of hearing the 60 Hz hum from my pedals. It has both a 9v DC and a 12v DC output. There's also a 5v USB port for charging cell phones and other devices. NOTICE: The output cable is 9 volts on the center pin, which is standard for most guitar pedals. I also bought a polarity reversing cable to get the - voltage on the center pin. The output voltage is 9V. Power Reverse Polarity Converter Cable 5. (Mr. Power Reverse Polarity Converter Cable 5 X 2. 1 Pedal for Keyboard Guitar Effects) - It's fantastic and there's no hum to speak of!.

Augustine SLATER

| May 06, 2021