12V 100Ah LiFePO4 Lithium Battery 100A BMS,NewtiPower Group 24 10000+ Deep Cycle Lithium Iron Phosphate Battery Great For Winter Power Shortage, RV, Marine and Off Grid Applications (12V 100Ah)

I have two 36v golf carts that had 4yr old batteries that all needed replacing. I purchased two of these lithium batteries in May and so far they’ve been great. I was a little concerned about how long the 100ah would last but they actually run longer than the lead acid ever did.The price is much better than lead acid and I think it took about 300lbs off of each cart.Very straightforward install and the quality seems good as well. The carts get used nearly every day at a marina and I’ve never dropped below 40% or noticed any difference in power. Both carts seem a little faster and easier to maneuver which is probably due to the big weight difference.The charge rate is also much better than the old batteries (about 3 to 3 1/2hrs from 50%)I just mounted the chargers beside the battery under the seat and run an extension cord to them, which is much nicer than dragging the old heavy buzz box around.The display is also very informative and shuts down automatically after about 5 minutes if the cart is not being used.Time will tell how long these last but so far I’m very satisfied with these and will never go back to lead acid.

Our old lead acid batteries in our camper will no longer hold a charge. I have been searching for a LiFePO4 battery for some time and could not find the perfect one until I discovered this one. The stumbling blocks in my search were that many of them do not have low temperature cut off which is important to me because we occasionally camp in cold weather, or they were too big to fit in the standard 8" wide frame welded into our camper, or they were way too expensive. This battery checked all the boxes.This 200ah battery weighs just over 47lbs and replaces the pair of 100ah lead acid batteries that weighed 40lbs each, giving us the same or more capacity while only weighing roughly 1/2 as much. The photos show the old set up compared to the new.I did still struggle to find a battery box that this battery would fit in, and still fit inside my camper frame rails. Part of the problem is that the measurements of most batteries and boxes are too general making it difficult to tell if they would fit. In most cases the measurements are different at the top than at the bottom. This battery measures 13 7/8" L x 7 1/4" W at the bottom and 14 7/16" L x 7 1/2" W (including handle protrusions) at the top. The case measures 9 3/4" tall plus the terminals will stick up above that. I ended up using the Camco double battery box #55375 also purchased from Amazon. As you can see, everything fits together perfectly on the standard 8" wide camper frame rails. (I did have to cut out a divider that was between the original battery boxes on my frame rails). The extra space inside the battery box will provide room for the TPMS transmitter, battery monitor shunt, terminal blocks, and main disconnect switch. It will also allow a much neater wiring installation.Our camper's electrical system was designed for lead acid batteries and will not properly charge LiFePO4. I have been in contact with the camper power center manufacturer, WFCO, who makes an updated converter that will replace ours and I will be changing to it. Since it will be a little while until I can change the camper converter, the folks at NewtiPower were kind enough to send me a separate charger at no cost so I can use their battery in the mean time.NewtiPower customer service has been fast and has exceeded my expectations. I am very pleased with their products and service.

These batteries are the best around. I have owned 4 200 Ah ones (10 kWh at 48V) for several years, which I used for an off-grid solar system out in the Texas desert. They have survived temperatures from 10 degrees to 120 degrees F (even hotter in the shed they were in) without any issues.I just bought 8 additional 300 Ah ones (another 30 kWh) and installed half of them. It is amazing how they can take or produce kWatts of power and not even heat up.The 300 Ah ones were cheaper and more compact than the old ones per kWh and they now come with a handy built-in Voltage and State-of-Charge meter.One thing to keep in mind when installing: use short, thick cables, preferably 1/0 AWG copper or better, and quality lugs. 100 or 200 amps is a lot of current!The batteries were delivered within a week from ordering and were very well packaged.A true quality product!

This battery was not fully charged when I received it. I charged it with a brand new LiTime 40 amp charger, which meets the battery’s performance specs and charging requirements in every way. (You have to request these specs from Newtipower - they are not included on the Amazon webpage.) I installed the battery and noted that it discharged by 30% within ONLY 20 minutes. This made no sense given the power (amp) draw was only 2.5 amps. A 30% discharge at 2.5 amps should have taken 36 HOURS, not 20 minutes. I recharged the battery again using a 200 watt Renogy solar panel with no problems. The battery then discharged abnormally yet again. When I attempted a recharge again with the solar panel the battery would NOT recharge at all (at ambient temperature in the 60F range). I contacted the seller to request a warranty refund. They refused and instead blamed me for the malfunctions. Bottom line: this battery is 100% non-functional and the seller will NOT honor their warranty. Also: no free returns so if you do return it YOU will have to pay big bucks for shipping 60 pounds back to the seller! Have filed an Amazon A-Z guarantee claim and hoping to get my money back. UPDATE: Amazon refused the A-Z Guarantee claim. The company messaged me to say they are sending another battery - no refund. Now plan on camping/travelling with an old AGM battery as backup. I just can't trust this product. UPDATE #2: Company promised a full refund over a week ago which has not been received. Interesting. The 300 amp hour battery I bought is no longer offered by the company on Amazon…