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3x Starting Current
10x More Start Cycles
5x Service Lifetime
30% Of Original Weight
Email Address
USA, Canada Dispatch Locally
Enjoy confident, ultra-high starting performance with cold cranking power up to 480A, delivering a clear upgrade over traditional lead-acid batteries. Built for long-term use, it also provides an impressive 3,000-cycle lifespan—compared to about 300 cycles for lead-acid (up to 10:1 advantage)—so you get reliable starts and extended service with fewer replacements.
Monitor your battery at a glance with the integrated digital screen that shows both voltage and State of Charge (SOC) in real time. It makes it easy to confirm your battery’s condition anytime, helping you stay prepared and keep performance consistent without guesswork.
Built with a multifunctional Battery Protection Unit (BMS), this battery is designed to support both safety and long service life. It includes key safeguards such as over-charge, over-current, over-discharge, and short-circuit protection, plus cell equalization/balancing to help maintain consistent performance and reliable operation over time.
Engineered for harsh environments, this battery features a V0-level flame-resistant case and an IP67 water/dust protection rating to help deliver dependable performance in wet, dusty, and demanding conditions. It’s also designed as a direct replacement that fits a wide range of equipment and common U1 sizes (including Group U1, U1-5, U1-6(J), U1-7, and U1-9(J)), giving you added confidence, convenience, and long-lasting reliability.
TYKOOL continues to advance LiFePO4 lithium battery technology through ongoing research, rigorous testing, and real-world validation. Our engineering focus is centered on improving efficiency, safety, and long-term durability—so your equipment stays dependable even when temperatures drop. From seasonal storage to winter starts, TYKOOL delivers a reliable Lawn Mower Battery 12V solution built to keep performance steady and ready for work in cold weather.
Shipping:
1. USA Dispatch Locally, Free Shipping.
2. Product processing time is usually 1-2 working days.
3. Product Standard shipping time is usually 3-5 days.
4. Learn more about our Shipping Policy.
Return:
1. If you are not satisfied with the products, customers can return or request a refund for products within 30 days of receipt.
2. Learn more about our Return & Refund Policy.
| Model | U1-S-400 |
| Type | LiFePO4 |
| Single cell brand | 50C |
| Size | 194*123*176mm |
| Weight | 1.6kg |
| Negative position | L |
| Rated voltage | 12.8V |
| Rated Capacity | 8.0Ah |
| CCA | 400CCA |
| Interior Resistance | 7.7mΩ |
| Rated Charge Current | ≤8A |
| Maximum charging power | ≤80A |
| Continuous discharge current | ≤80A |
| Instantaneous discharge current(5S) | ≤240A |
| Short circuit protection | NO |
| Over Discharge Protection Voltage | 8.0V |
| Over Discharge Recovery Voltage | 9.2V |
| Over Charge Protection Voltage | 15.6V |
| Over Charge Recovery Voltage | 15.2V |
| Equalizing voltage | 3.65V |
| Charge discharge cycle | 1500 cycles |
| Self Discharge Rate | ≤30uA |
| Adaptive temperature | -20℃~80 ℃ |
