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🔋 Power up your productivity — don’t get left powerless!
The LiTHELi 20V 4.0AH Lithium Ion Battery Pack offers a robust 20-volt output with a substantial 4.0 amp-hour capacity, engineered with EV-grade lithium-ion cells for reliable performance down to -20℃. Featuring a built-in 4-LED battery life indicator and low self-discharge technology, it ensures your tools stay ready when you are. Designed exclusively for LiTHELi 20V power tools, this lightweight, rechargeable battery is backed by a 2-year manufacturer warranty, making it an essential upgrade for professionals and DIY enthusiasts seeking dependable power on demand.
| ASIN | B08QRY7MM2 |
| Amperage | 4 Amps |
| Antenna Location | Power Tool |
| Battery Capacity | 4 Amp Hours |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 690 Grams |
| Best Sellers Rank | #10,759 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #67 in Cordless Tool Battery Packs |
| Brand | LiTHELi |
| Customer Reviews | 4.5 out of 5 stars 547 Reviews |
| Item Dimensions | 4.92 x 3.35 x 3.35 inches |
| Item Weight | 14.4 ounces |
| Manufacturer | Litheli |
| Model Number | E1-20BY2SJ |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Recommended Uses For Product | Power Tool |
| Reusability | Rechargeable |
| UPC | 740907583656 |
| Unit Count | 1.0 Count |
| Voltage | 20 Volts (DC) |
| Warranty Description | 2 Year Manufacturer |
S**L
Ease of use and last
These are good batteries. One came with my electric mower and I've had it awhile now. The battery is still good but I wanted an extra one in case I needed it. I have 2 small areas where I mow and they hold up to cut theses areas at least 2 times.
J**R
Good product
Works great
V**V
Keep battery out of elements when not in use.
The battery will last longer if you keep in the garage. We kept our first battery in the shed and it got too cold and hot. Did not last long. New battery is doing great and mows complete lawn in 1 charge. Easy to use and excellent quality. Thank you.
D**R
No regrets. We purchased a second set of batteries…
Keep batteries indoors out of the cold to extend life.
S**A
Works great
Took a little longer then expected to receive, but works great! The size was as described and it's very well made and easy to use. The power of battery is perfect for my little mower. The value was so so I think it was priced a little step but the quality defines the price.
D**S
Works As Expected and Good to Have a Backup
Works As Expected and Good to Have a Backup; what else can I say?
H**H
Positive Update on Dead Battery Received
Update 6-13-25: I charged the battery again, re-inserted it into the mower and it started working. Have now used it twice without issues. The company offered to refund my purchase even though I was beyond the return window. So, all is fine and I now recommend this battery and the seller. Charged the battery when received and tried to use it. Would not work in mower. Charged it again and tried it again. Still won't work. Battery is obviously defective. Return window has passed so I've lost $60 on this expensive door stop. Do not recommend buying this!
W**E
Quality
Nice batteries.The charge is good. Takes a while for it to run down 🇺🇸
Trustpilot
2 days ago
3 days ago