melasta 12V LiFePO4 Battery Pack, 6000mAh Rechargeable Lithium ion Phosphate Battery Power Bank with 12V 9V DC and 5V USB Output, for LED Light Strip CCTV Camera Telescope Mobile (Without Charger)

This thing is a absolute champ i power all the lights on my mini bike with this ride to and from work (abt 20 min) and it doesn't even drop a single bar of battery life the headlight i have is a big led and a big power draw so im super impressed

Bought 2 of these to power some audio equipment to bypass noisy power from the mains. They work very well and are very flexible because they have 3 output ports - one for 9v, one for 12v (which actually puts out more like 13.5v but still works fine with 12v devices), and one for 5v (USB). They made a marked improvement in my audio. They do NOT come with a charger so that needs to be purchased separately (I think it was $16) 14v 1.5 amp charger. They do come with 2 super short (6 inch) male-to-male cables but they are really short so you may need to also purchase longer ones if needed. All in all, very happy with these. They last long (the charge) and put out nice clean power.

I might as well have just lit $50 on fire, it would've been about as useful. What kind of rechargeable battery doesn't come with anything to recharge it? I got a universal charger w/ multiple plugs, one of them fit, but it only charges it up to the 3 of 4 Led lights. Not sure if that's because the 4th light is burnt, or the charger doesn't have the right output 🤷. After recharging, it lasted about 5 minutes. I'm like ok... Maybe the universal charger isn't working the greatest on it. I see there's a talentcell charger that is recommended as "usually bought together" with this, so I grab that one. It doesn't fit. At this point, I don't really know what the problem is, and I don't really care. Unfortunately I cut up a couple of the wires it came with for splicing this battery cell into a project it is now no longer good for, so returning it isn't really an option. Again, why have a rechargeable battery pack with no way to charge it?

I purchased this for using with my Amateur Radio HF Transceivers. It will easily run my QRP (5 - 10 Watts) Transceivers. It appears to be really well made, and what I like best are the multiple format/output jacks. 12 VDC at 5 Amps, 9 VDC at 1.5 Amps, and 5 Volts USB. It will easily run my Ten-Tec Argument II, which takes 3 Amps on transmit. I highly recommend this unit.

Battery management system is terrible and the lights in no way show the actual charge level. Like another reviewer said, the only way to ensure it is fully charged is to go with the light on the charger.The charger is very light weight and I don't see it lasting long. I do have a separate LiFePO4 charger, but it puts out 4 amps and the battery pack says 1.5 and max. I'm hoping that this is because the charger they have is 1.5 amps and not a BMS limit as a 6,000 miliamp-hour battery should be able to charge at 6 amps. I'll see when the charger breaks.The charging of the battery pack appears to have no charging circuits and is attached directly to the BMS or cells. This means you cannot use a solar charging system, unless you have a charge controller, and then according to the specifications you are limited to about 18-20 watts.Very limited unregulated outputs and cheap construction.Better options for not much

Why so generous? The short answer is I’ve learned there are more things to go wrong than right in dealing with variable voltage. Take quick look at Melasta’s product line and its good reviews. You’ll see a lot of things done right. That’s why I expect things to work out.Products like these are most likely purchased by people who know how to use them, and probably have extra chargers in the cupboard. If you don’t know if you need a charger for this battery- well you need one. There’s an option either way, and I think it’s nice to save money if I have the charger already. This is a LiFePO4 12v battery, and needs a 14.6Vdc 1.5A charger - any less and you won’t see all the charging LEDs stop blinking. But I didn’t know that at first. There’s a lot I didn’t know.Admittedly, I have more aspiration than competence in this case, and that’s why I think I’ve been unsuccessful. Once I finally resorted to reading some instruction, I found the switch that needs to be “I” in order to charge. Shortly after I discovered my 12v charger didn’t finish the job, but it got 3 charge lights. I ended up using bench top power to top it off and finally could put it to task… only to learn that the 12v output option is not constant voltage. It slowly drops like a car battery with the engine off and the radio on. Almost all 12v devices I can think of will run perfectly fine this way, (some even state a range as big as 9 through 30 volts). Well, all except for the signal repeater I was using. Even though my repeater is made for dc, the label says only to use with the transformer and mains power. It shuts itself off at +\- 0.5v from 12v. Still I tried twice more before my phone died and I shifted to using the 5v usb and my lighting connector to charge my iPhone. Once it turned on and displayed 2%, the Battery Pack was drained.I suspect the leds that show the state of charge are more like loose guidelines. I didn’t use a meter at any point, and I don’t know how much power the repeater used. I also know my iPhone is old and already has a cheap replacement battery inside, and maybe it takes a lot to charge it if only 2%.All things considered, I’m still very optimistic. This is a solid device and it’s close to the lowest price point. Any upgrades will swiftly triple the cost and you’ll be looking at Renogy product or similar.Worst case, if this is a dud and the seller is unresponsive, I’m sure I can swap out the cells if needed. But I’ve got things to try before all that.

Works great to power lights on rear of bicycle. Stays charged a long time.

I used this for an ebike lights that requiere12v or 24v, this one has both so I connected 2 lights. No issues so far with its own on/off switch.