CHINS LiFePO4 Battery 12V 100AH Lithium Battery - Built-in 100A BMS with Low-Temp Protection, 2000~5000 Cycles, Perfect for Trolling Motors, Solar System, Marine, RV, Boat and Off-Grid etc.

You MUST understand the following when designing your solar power system. Power is measured in watts. Volts times amps equals watts. 12 volts times 10 amps equals 120 watts. 120 volts times 10 amps equals 1,200 watts. I thought amps were amps, so I designed my system thinking I could run my 10 amp (1,200 watt) microwave for 40 hours with 400 amp hours of battery storage. Wrong. 1,200 watts at 120 volts is 10 amps, but 1,200 watts at 12 volts is 100 amps of continuous power draw from the battery. My system turned out have 1/10th as much power as I thought it would have, but I didn't know that. I have been dealing with power issues since I started living in my van 4 months ago. Every time I ran the microwave for for more than two minutes the batteries would shut themselves off then come back on a few seconds later. It turns out the 200ah 100 amp BMS (Battery Management System) batteries I bought couldn't handle the power draw. I had to replace them with 200ah PLUS batteries with the 200 amp BMS, which allows for 200 amps of continuous power draw. It took me forever to figure out what the problem was. These guys went way out of their way to help me on numerous occasions, including paying for shipping AND packing when returning a battery that turned out to have nothing wrong with it. I bought the batteries after seeing a YouTube video where a guy cut one open and was impressed with the quality construction. The batteries work great and other people I know with Chins batteries have never had any issues with them. The prices are better than most. What really sets this company apart though is the customer service, which is the best I have ever encountered. I have been repeatedly impressed by their responsiveness to my technical questions as I tried to discover what was causing my power problems. So yeah, I highly recommend Chins batteries. UPDATE: July 2023 -- It turned out that all my power problems did not involve the batteries shutting down at all. The power was cut by a circuit breaker which would reset itself after a few seconds. I had no idea self-resetting circuit breakers even existed and assumed that since the lever on the breaker hadn't flipped open the breaker had not tripped. I replaced the breaker anyway just to eliminate the possibility it could be part of the problem, which still persisted. Something to know about nearly all the circuit breakers sold on Amazon and elsewhere: They trip at much lower current draws than they are rated for. My 150 amp breaker was tripping at 100 amps. I replaced it with a 300 amp breaker and that solved the problem that had been defeating me for 9 months.

I was VERY hesitant to gamble the money (still expensive compared to LA batteries) to "try" these in my bone stock 2005 36 volt EZ-Go TXT PDS golf cart as replacements to the old Lead Acid batteries. I couldn't find any applicable reviews, videos, or install pics online or on Amazon showing them being used in a golf cart. I didn't really want to be the test-monkey for these in a golf cart. There were a couple of solar guys using them, some reviews for solar systems, and even one YouTube reviewer who tore them apart and was impressed by the build quality; but NO golf cart specific examples that I could find. I long debated the cost to "potential" benefit ratios, the golf-cart-proven (but significantly more expensive) alternatives that were out there, and the total amp hour ratings, peak discharge current ratings, and the potential for difficult returns if necessary. BOY AM I GLAD I BOUGHT THEM!! Huge difference in golf cart performance! Super light compared to the old LA (3 light weight batteries vs. 6 super heavy anchors). Runs MUCH longer and more consistently between charges. I've run it around and around my neighborhood up to 10 miles before I got bored and cold and still had tons of power to spare. Ran it for 4 days on the ranch while hunting and doing small maintenance tasks; NEVER lost power and performance and NEVER had to recharge the pack all weekend. Charges faster when needed. Way less mess than the old LA Batts. Cart runs a little faster (consistently up to governed speed regardless of terrain), accelerates faster, has more torque, pulls hills better, runs seemingly forever, powers lights, powers accessories, powers the cart w/me the wife and 3 kids (2 full grown)...the list goes on and on. I also installed a Renogy battery meter that measures draw and I never come close to exceeding the 200 amp 5 second peak draw my batteries are rated for (I think they just released a new version with 300amp peak for 5 seconds). Bottom line, if you are looking for a less expensive alternative LiPo battery set for your 36-48 volt golf cart, these will work, and work VERY well. No more pushing the cart up the last little hill to get home. And they actually shipped relatively fast from China to TX in very sturdy and well packed boxes with plenty of shock resistant foam surrounding the battery pack. Saved several hundred dollars over "cart specific" marketed LiPo battery kits and these simply work wonders in my cart. My only complaint is that I had to go to another more expensive (but reputable) manufacturer of golf cart battery pack kits to pick up a 36 volt specific LiPo charger for the batteries wired in series. Simply couldn't find an applicable 36 volt LiPo golf cart charger on Amazon to match my specific application. But the DL 36 volt LiPo charger tied to these 3 batteries in series has made my golf cart a whole new and more enjoyable experience.