Weize Lithium YTX20L-BS, Group 20, 600A LiFePO4 Motorcycle Battery, 12V 8AH ATV, UTV, Jet Ski, 4 Wheeler, Snowmobile, Personal Watercraft, Seadoo, Polaris, Generator and Riding Lawn Mower Battery

This is the best battery ever. I have installed this battery in two of my generators, a 13KW DuraMax and a GenMax inverter 9KW and in both cases the electric starter starts every time, even if it's been 6mo since I started it, it still starts great. I never have use a battery tender anymore. These just keep a good charge for a very long time. It fits perfectly in the generator mounting space. I think it's actually smaller than the original lead acid battery. I simply use the built in charger from the generators. I haven't had any issues with charging at all. Fantastic battery for the price.

Purchased two of these, one for my jet ski and one for my 4-wheeler. Both were perfect fit (same size as the batteries I replaced) and the power was amazing! 700 cranking amps starts them both right up. My Jet ski has always been a hard crank even with a new battery, but with this it fires right up. We will see how long they last but I got no complaints so far.

Replaced the battery in my zero-turn mower last year with one of these it holds a charge much better than the old lead acid battery it came with and lots more cranking power.

I ordered this to put in a Kawasaki ATV. It was listed as a direct replacement for a YTX14-BS Battery. Nothing could be further from the truth. When it arrived I knew it would be lighter, but it felt almost empty. I decided to read the manual before doing anything. Right on the cover over the Manual it Said Starting Battery. I thought that was strange , then I started reading more.. It became apparent that this was a battery only for briefly starting the vehicle and nothing else. when I read the warnings it basically said do not connect any electronics without authorization or damage will result. I have uploaded the manual pages here. I messaged the manufacturer to tell them I had a winch, stereo and light bar on my ATV. Here is the response I got "The Weize Lithium YTX14-BS battery can provide sufficient power for basic ATV functions. However, accessories such as winches, stereo systems, and large light bars typically require more power and may cause a sudden high load on the battery. Therefore, this battery may not suitable for safely powering all these accessories. You should consider a higher capacity battery that is designed to support high-power accessories to ensure safety." So, after getting that message and reading the specs break down which is also here in my review. I returned the battery. After reading the detailed specs I have a guess as to what this so called battery actually is. I believe they have some small number of 18650 Lithium cells or some other model#. Then they have two or maybe more capacitors in there. When you start your motor you get a 3 second 500cca burst from the capacitors which then turns into 200cca for 10 seconds according to the manual. And that is about it. then while you ride it will recharge the Lithium batteries which will charge the capacitors. At best this is a Hybrid battery that as the manual says right on the cover is a starting battery. It really cannot do anything more. I cannot imagine having this battery in a very cold climate where you may encounter hard starting. This battery would be useless I buy lots of AGM batteries from Weize that are always a good performer as well as a good price. This is not one of those batteries.

This battery was a perfect fit in a 2011 Harley Road King, from overall size to post postition. Bike was cranking slowly with the 4 year old, 380CCA lead acid battery. This lithium battery is amazingly light, I picked up the UPS box and I was concerned there was no battery in it. Fit perfectly in the bike, and let me say, I've had quite a few Harleys with 98 and 103cc motors, they all seem to crank somewhat slowly especially on that first rotation. This battery has the motor JUMPING to life on the first rotation, I've never had a Harley start this quickly or effortlessly. I also hooked up to my battery tender, the tender showed it was charging for a while, when I checked later the green light was on indicating it detected a full battery. so the lithium battery management system seems to play nicely with the standard battery tender. Time will tell on longevity, but first impressions are that this is a light, powerful battery. Copper threaded battery posts are a nice touch, compared to the game of skill and change you usually have to play with the lead posts on most batteries and the little square nuts that you have to get in place and pray they don't fall out into the abyss under the battery box.

The Weize Lithium YTX9, 400A LiFePO4 Motorcycle Battery is a solid upgrade from a standard lead-acid battery. It’s lightweight, holds a charge well, and provides plenty of starting power. Installation was quick and easy. The only reason I didn’t give it 5 stars is the price—it’s a bit higher than traditional options. Still, the performance and long life make it worth it.

I purchased this Weize Lithium YTX30L-BS battery for my 2003 HD Road King Classic. The last battery's cranking amps were slowing dwindling and required frequent charging over the last few months. Easy enough to tell as it lagged a bit at start time. The old battery originally had about 400cca but this new Weize Lithium touts 700cca. And of course, there is such a HUGE difference when you hit the starter. Now, it cranks the Road King right away with no hesitation. Out of the box the battery registered 13.6 volts. I topped it off with an appropriate lithium charger which settled it in at 13.8 volts before installing. The battery was a perfect fit and the terminal blocks well placed for easy connection of the cables and lugs. This Weize battery weighs in at 6.2 lbs. enabling me to set it into the motorcycle battery compartment with just one hand. Nice quality hardware included in the package for connecting the battery cables. So far I am impressed with its performance. And after having said that, only time will tell as I only received this battery yesterday and installed today. I've read that this unit is designed as a "starting" battery and not really to be used for extended discharging of high current items for long periods of time. Since the Road King has no power sucking lights or motors or other items that would draw high current continuously this battery should work just fine for a looooong time!

Frankly speaking the LFP battery is great, BMS puts out over 500 cca. Exactly as stated but I needed a battery with positive terminal on the right. Technically this has an L in name like YTX-14L BS. So I made a mistake and tried to return my unused, new, LFP battery in the original box. So I get a return authorization and print the label. Oh it says purchaser must pay postage, OK, I can absorb a couple of dollars for MY ordering mistake. But wait, this is where it gets really evil. The return address is a PO Box in CA. Because it’s a LFP battery package must go by ground and special handling. Cost $56.04 for me to return this $99 battery. No thanks, I will keep it. What you need to know is that it is cost prohibitive to return this battery because the company has intentionally made it too expensive by selecting a PO BOX. If you buy one, know that you really can’t afford to return it.