Qidianfy 12V 200Ah LiFePO4 Lithium Battery | 200A BMS

This battery is perfect for my 9-foot sit-down kayak, serving as the power source for the electric propulsion. It easily reaches speeds of 4 mph, and with paddling, it can go up to 5 mph. 5 mph feels incredibly fast on a kayak. It fits in the rear storage compartment of my older Town Heron 9xt kayak, and it looks like there's still room for my cheap $20 kayak go-kart (with one wheel removed).

I bought this power board a few months ago to install in my travel trailer. My previous power board was for lead-acid batteries and couldn't fully charge lithium batteries, so I switched to this one. It's a world of difference compared to my lead-acid batteries. It weighs only half as much, but the usable power is doubled. My 200Ah lead-acid battery only lasted 50Ah before it "ran out of power"; while this power board can truly fully charge 200Ah.

So far a great product. Much lighter than the other battery I was using.

So far I have been impressed with this battery. Had it about a year now and has a really slow discharge rate.

it's lightweight last long everything I needed

This has been a great battery for me. The first one I had an issue with but the customer support was excellent and I had a new one within a week. I've used this to power a ton of accessories between light demonstrations, a trolling motor for my kayak, and work lights.

I was initially impressed with the qidianfy 12.8 volt 200ah batteries I've purchased 3 thus far now they've jumped in price from 269.oo to 329.oo in a month ridiculous why the price hike. I may have to look elsewhere sell these and start over pity . Because I do like the performance thus far.

Their customer service is fantastic! I had some questions before ordering, and they responded very quickly. I've been using it for about a month now, and it's perfect! 🌟🌟🌟🌟🌟

I bought a 12.8V 200Ah battery a few days ago and I'm extremely satisfied. It's small and portable, yet provides the power I need. Customer service is excellent, and the staff are very friendly. They proactively call to inquire about usage and offer to connect with their engineers to help you understand how to use the product. I initially bought it as emergency power during power outages. Although power outages aren't frequent in my area, I've decided to use it daily to power my modem, network switch, alarm system, and some LED lights, saving money during peak electricity usage times. My portable charger fully charges it daily. I plan to buy a 200Ah or 300Ah battery later, or when there's a promotion. I hope you continue to maintain this level of service! It would be great if you could produce batteries with built-in Bluetooth, so we wouldn't need to buy additional devices to monitor battery status.

this is the second one Ive got from them, both are working great! I wont hesitate to get another or to reccomend them to others

I purchased two 200Ah batteries to power the electric trolling motor and fish finder on my 17-foot Lund Pro Angler DLX fishing boat. This system replaces the two lead-acid batteries I previously used in parallel.

For two 74-year-old ladies, removing the old lead-acid batteries from their RV was a real challenge. The new Qidianfy lithium batteries were so light that I was able to move and install them myself. After charging them and connecting them in parallel, my RV is now running perfectly. The batteries arrived faster than expected, and the packaging was excellent. I highly recommend them to all RV enthusiasts, young and old.

I've ordered many batteries from Qidianfy. They always provide top-notch service and high-quality batteries! Their service consistently meets and exceeds my expectations. Once, I was installing a new shunt and charger. Since I wasn't sure of the correct values, I sent them a screenshot of the settings. Within hours, I received a corrected screenshot with the correct values, which I could print out and place next to my device. They've earned my loyalty!

Their support was fantastic, keeping me informed of the battery's transit status and estimated delivery time. They also responded promptly to my questions, such as what kind of box to use to pack it in my travel trailer. I replaced my two original lead-acid batteries with this one, simplifying the system.

The batteries arrived quickly and were packaged sturdily.

I replaced four 6V batteries with two 12V 200Ah lithium iron phosphate batteries, and so far I'm very satisfied with them. I decided to buy them based on reviews and customer service. I had a question, and the Qidianfy team answered it within 24 hours.

All I can review for now is on the package and shipping.The battery was exceptionally well packed and it actually arrived less than a weekIt looks great and came with eyelet posts.I plan to order one more, by the time I get the second one I’ll have a review on the performance

So far so good. They take up less space too.

Outstanding product!!. Exceeded my expectations.

As described fast shipping

I purchased a 200Ah battery, and the seller told me that the instantaneous current of the 200Ah battery reaches 900A before it will activate the protection of the power failure, I asked about the safety issue, they told me not to worry, this battery also has high temperature protection and short circuit protection, it will also cut off when the operating temperature exceeds 65 degrees Celsius! I asked about the safety issue, they told me not to worry, this battery also has high temperature protection and short circuit protection, the battery working temperature exceeds 65 degrees Celsius will also cut off the power! Multiple protection rocks are very safe! The battery is now mounted on a ride-on toy and is flying happily!

Installed this at the cottage with an inverter to run my satellite receiver and tv. It ran great for hours and only dropped 1 volt. Totally impressed…

This battery is the workhorse of my RV setup. I switched from multiple lead-acid batteries to this single 200ah lithium, and I can’t believe how long it lasts.

I use this 200ah battery as a backup power source for my home during outages, and it’s been a lifesaver. It runs my fridge, lights, and essential appliances for hours on end. The build is solid, and I feel confident in its reliability. The customer service was helpful when I had questions about connecting it to my inverter.

My battery stopped working after 2.5 years. I consulted customer service and didn't want them to replace it, but I hope they can help me troubleshoot. They not only helped me troubleshoot, but also asked me to bring the battery for testing. They found a problem with the BMS and sent me a brand new battery

I’m very happy with my purchase. I will definitely buy from them again.

This is an excellent battery. The quality is top-tier, and the build is very robust. I would recommend it to anyone needing reliable power.

Installed this 200Ah in my travel trailer. Used to have two heavy lead-acid batteries that took up a lot of space. After switching to this one, much lighter and freed up space. Went out for three days last weekend running fridge, lights, and water pump, never needed to recharge. Plenty of power.

Installed in my RV, handles the AC and fridge at the same time with no problem.

Bought this as backup power for my small cabin, runs a few LED lights and phone charging. After a full charge, let it sit for two weeks unused, voltage barely dropped. Low self-discharge is excellent. Charges fast too, a couple hours on the generator puts a lot back in.

Replaced two 100Ah lead-acid batteries with this one, saves a lot of space.