After just one week of use, I’m already impressed with how these LiFePO₄ batteries perform. I use a 4-pack setup to power my home on weekdays from 5 PM to 9 PM, helping me avoid peak charges under Colorado Springs Utilities’ WISE rate — a time-of-use billing system where electricity costs more during evening hours. The Bluetooth BMS gives me full visibility into cell voltages and SOC, and the FET-based cutoff reliably stops charging at 3.300 V or 3.350 V per cell, depending on the phase, to protect the cells from over-voltage stress. I also use the FET as a manual load-side cutoff switch, giving me remote control over when to isolate the inverter. Combined with a Swipower inverter that also supports Bluetooth monitoring, I can stay warm inside the house and remotely power up the inverter — a huge advantage in winter since my garage has no heat. This setup gives me control, savings, and comfort. To the person that the cells are charging all unbalanced the.059 voltage difference from the highest to the lowest cell, get an app like solar overkill and get the balancer enables after 3.300 per cell and delta to 10 so when cells have a .010 v difference the balancer kicks in. Maybe it was left off from factory.

Just installed three of these in my trawler to replace 6v agm bank. So far they are SPECTACULAR!! Bluetooth monitoring is great! Were at 50% when installed and two days on solar panels they are up to 57%! Never dropped below 13.2v overnight where old agms would go down to 11.8... was spending over $150/mo on fuel for generators to keep old bank up. NEVER AGAIN! Super happy with XLNT PRICE, and delivery!

So far so good. I was thankful for other Amazon reviews of this battery. I got the 300 AH non heated battery. So far it has been great, I’ve ran it down to about 35% and charged it to 100% with my 80 amp charger, no issues, the app works it’s just not great, maybe if you buy the pro version for $7.99 it would be better but I can confirm that other BMS apps work with it like overkill solar. The BMS app shows cell voltage and balance and AH remaining, even though this said it was a 300 AH the BMS shows 320 AH. I’m using it for my travel trailer with a 2,000 watt inverter. I haven’t put it through all the paces yet like testing low temp cut off but so far it starts my Onan 4,000 generator without issue and has supplied plenty of power to my 2,000 watt inverter when it was producing 1800 watts. Seems like an excellent value, only time will confirm.

I just installed this prior to a 10 day off grid camping trip, replacing four worn out 6 volt batteries. The trailer has two 165 watt solar panels. The outside temps were cold enough that the furnace cycled a few times throughout the nights, and lights were used liberally. This trailer does NOT have a 12 volt compressor fridge. I had a Victron smart shunt installed, so I could monitor the battery the entire trip.

The battery operated as advertised. If you have a compressor fridge, I would recommend 2 of these and 600 watts of solar, at a minimum. 800 watts would be preferred. The battery maintained good voltage between charging periods. The last 3 days out, we had heavily overcast sky’s so the solar charging was nonexistent. The generator only needed be ran a total of about 2 hours over 3 days.

been operating for three months. have 4 other leading brand batteries. so far all is working well. low temp cuts off works. phone app works fine. no complaints. balancer works. holds charge.

thinking of purchasing two more. price is good.

I haven’t had a chance to try the battery out yet because it was purchased for solar storage and we don’t have the system installed yet. It was on sale and it had the right amount of storage we were looking for. Also it is nice that the app shows the state of the battery.

This purchase was as a replacement for another "dum" brand that was supposed to make me "fume" ;-) but showed up DOA. It arrived 6 days after I ordered it. It was packed well and arrived in excellent condition. Just like the other battery, this one weighs 57 pounds which is pretty amazing for the capacity. I already had an enclosure ready for the prior battery containing a battery switch, circuit breaker and shunt. A quick connection to the 8mm terminals and I was in business. I did ask my own wiring and had a 120 Amp Anderson connector ready to connect to the same that came on my 60 amp charger. One big difference between this and the other battery was it has Bluetooth capability. They supplied a card with a QR code to download an app but the webpage it sent me to was in Chinese. I figured out how to download the app but it was useless. It was also in Chinese with no obvious way to change the language. Research indicated it was an awful app anyhow. In the research, I discovered people were using the Xiaoxiang app successfully put out by the manufacturer of the BMS used in the battery and it works fine. I compared its information with the information on the Victron shunt app and there were small variations but I would believe the accuracy of the Victron app. The battery came approximately half charged. I successfully completed the charge at a sustained 60 Amps. I saw one of the four cells was a bit aggressive in the charging being ahead of other three causing a voltage limit before the others. The next day I ran a capacity test at a sustained 30 amps and the battery did a fine job with equal cell voltages down to the end. I was able to get 308 Ah out of it and I've subsequently got 310 Ah. I ran another 60 Amp charge. Once again, the cell voltages remained equal to the end and then that same cell took off again causing a cell voltage limit before the other three. Time will tell what the performance will be like. The battery came with a manual but it's really just a listing of LiFePO4 battery parameters for batteries of various capacities and not really anything specific to this battery. Being a generic alphabet soup-namedChinese battery, it has no warranty, suspect expectations of battery cycle life and no warranty. Time will tell what the performance will be like. Hopefully it will hold up well over time. A YouTube teardown video shows pretty decent construction and it was shown that another random-Chinese-company-name battery that's showing up recently on the market is just putting their label over this label already on the battery. That video also showed well placed temperature sensors and properly functioning high and low temperature cutoff.

I purchased this battery to add to my other two 300amp batteries, but the app voltage is 13.3v and the output voltage was reading 12.7v on the terminal of that battery ??? I tested it because it was constantly draining my other batteries and when charging, it was take most of the charging power! The terminal reading should match the app voltage and it doesn’t. When I switch to my other batteries the voltage goes up to 13.5v and when I switch back to the new battery it drops to 12.7v. Is the app wrong? Because the terminal voltage doesn’t lie with a fluke meter reading 12.7v. If anyone knows the reason for this problem please let me know.

Excellent LifePo4 lithium battery. Charged then tested it on my motorhome. App gives enough information and how long you have left. When flat takes about 15hrs to charge with 20amp charger. Excellent price product and delivery can't fault but only time will tell if it's as good as it has been so far 👍

Bought two 300 Ah and I’ve had them for a few months now in our motorhome. They work great!

One of the batteries had a wrong BMS-setting when it was delivered. The support was able to fix it remotely within one hour after first contacting the support. Excellent!

La batteria è ottima, prima carica 318 ah.

Vedremo nel tempo.

Bisher voll zufrieden. Habe sie auf meinem Segelboot zusammen mit einem 1500 Watt Inverter in Gebrauch. Jetzt kann ich endlich anständigen Kaffee mit meiner Nespresso Maschine (1260 Watt) machen. Hält für mindestens 100 Tassen. Meine 100 AH AGM Batterie hatte vorher schon nach 1 Tasse schlapp gemacht. Gut finde ich auch die Bluetooth App, die auf dem Handy über den Ladezustand, etc. informiert. Die Batterie wurde sofort von der App gefunden. Die Chinesen haben es einfach bei der IT drauf.

Update:

Used for a solid 10 months now, still happy.

Use the play store app "overkill solar" if you don't want to side load the official app.

You can enable balancing on both charge and discharge which will help keeping the cells balance as the balancing current is pretty weak and might prevent proper charging under certain conditions.

Happy with the purchase. The app works well but must be side-loaded which is a security risk.

Still evaluating, will update when I used it for a bit longer.

Seller is responsive and replied to my question if you can mount the battery horizontally (on the long side) which was possible if done carefully.