

⚡ Start Strong, Ride Longer, Stress Less!
The ExpertPower YTX4L-BS is a sealed AGM 12V 4Ah battery designed for motorcycles, scooters, and ATVs. Featuring 120 CCA for reliable cold starts, a compact OEM fit, and maintenance-free construction, it delivers superior cranking power and durability. Ideal for powersport enthusiasts seeking dependable ignition and longer runtime, it comes backed by a 1-year warranty and ExpertPower’s trusted quality.




| ASIN | B015NS209M |
| Battery Type | Sealed Lead Acid |
| Best Sellers Rank | #5,166 in Automotive ( See Top 100 in Automotive ) #20 in Powersports Batteries |
| Brand Name | ExpertPower |
| Compatible with Vehicle Type | ATV, street-cruiser-motorcycles, street-motor-scooters, street-touring-motorcycles |
| Customer Reviews | 4.2 out of 5 stars 1,291 Reviews |
| Global Trade Identification Number | 00814832021320 |
| Included Components | BLDMYB12_4 |
| Item Dimensions D x W x H | 2.76"D x 4.45"W x 3.39"H |
| Item Height | 2.75 inches |
| Item Type Name | lead_acid_battery |
| Item Weight | 2.87 Pounds |
| Manufacturer | ExpertPower |
| Manufacturer Part Number | BLMMYB12_3 |
| Manufacturer Warranty Description | 1 year |
| Size | 12v3Ah |
| Terminal | Nut and Bolt |
| UPC | 814832021320 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |
J**N
it's a small battery that works great
It's a tiny battery but It works great, it was a good price and came on time
R**1
Ytx4LBS, so far so good
I usually use the mightymax (mm) brand with the clear window for the acid but decided to go with these instead due to shipping time no so much for cost as the mm are about $4 more. I bought 2 cause I have 2 taotao ATVs they arrived fully charged about 13.2v but I still stuck them on my solar bank charger for 2 days mainly cause I wasn't ready to work on the ATVs. Got around to fixing up my 125cc and put this then nothing....atv has not ran in over 3yrs. So no plastic fairing anywhere as it all flaked off and I just replaced the PZ20 carbs and fuel line and filter. I have added external accessories like an extra led spot light on the handle bar. The spot light lite up but no cranking. I thought maybe the switch was bad and was getting po. Then it dawns on my, how about the keys to the ignition 🙄. Jeez what reeree! Got the key, turned the ignition on, press the rear brake, and push the start bullion and it started cranking. Was cracking for about 2min as the fuel hadn't reached the new carbs and finally the engine started catching. I thought the battery was gonna give out but nope it stayed powered up until the atv fired up. These small batteries/motorcycle batteries really are a hit or miss as far as longevity goes. The acid leaks out if you keep on trickle charger. It's cheap and it works. Has my thumbs up. Would recommend and buy again.
W**P
Perfect fit & great value
This small battery is definitely worth the price. It’s easy to install, and it has a good crank and power fit. The cranking power is impressive for such a small battery pack, and it packs a lot of punch in that little space.
T**N
Great for the price tag
Thing did its job great. Be careful not to do what my ass did though… I had forgotten my bikes lights on after doing ignition coil work. Thing was completely murdered after about a day. I can’t blame the battery for that though haha
J**T
Works as it should
Exact fit
D**S
Not worthy
You get just what you pay for, cheap battery,didn’t even last one summer. Wouldn’t recommend it.
D**Y
Thank you
Great product USA SCOOTERS
J**A
Doe not last
Bought this for a 4 wheeler battery quality is it does not last barely drive the 4 wheeler every time we ride it we have to charge the battery before every use
Trustpilot
1 month ago
1 day ago