Customer reviews from skil.com
Amber Sporting Goods - SKIL PWR CORE 40 40V 2.5Ah Lithium Battery, Compatible with All SKIL 40V Tools - BY8705-00
Average customer rating
3.9 out of 5
3.9
(193 Reviews)
Open Ratings Snapshot
Rating breakdown 193 reviews
5 Stars
107
4 Stars
31
3 Stars
15
2 Stars
12
1 Star
28
83%of customers recommend this product. 
(
122 out of 147
)
Best Buy Privacy Policy
Customer Reviews for Amber Sporting Goods - SKIL PWR CORE 40 40V 2.5Ah Lithium Battery, Compatible with All SKIL 40V Tools - BY8705-00
Customer Rating
5 out of 5
5
on October 19, 2026
Posted by: Gerald Rankin
from Pride, Louisiana
Gender:Male
Verified Purchase:Yes
Plenty Power in this battery after an hour plus of usage.
I would recommend this to a friend!
Written by a customer while visiting skil.com
Customer Rating
5 out of 5
5
Built in Fuel Guage
on October 14, 2026
Posted by: Lee G
from Prosser Washington
Gender:Male
Verified Purchase:Yes
While somewhat heavy, this 40volt battery lasts a long time. After 30+ minutes of full throttle blowing, the built in fuel guage still showed 50% charge remaining. This is the second SKIL Tool I've purchased (the other is the 40volt string trimmer), and I'm impressed with the performance and quite satisfied with both purchases.
I would recommend this to a friend!
Written by a customer while visiting skil.com
Customer Rating
1 out of 5
1
Poor quality especially the battery.
on October 13, 2026
Posted by: JA Mays
from Winston-Salem, North Carolina
Verified Purchase:Yes
These units are made cheap battery wise so that you have to replace the battery at a cost equal to buying the whole unit every 2 years. I won't be buying another one.
No, I would not recommend this to a friend.
Response from skil.comBy SKIL Support Team, October 14, 2026
Hi JA! We're sorry that you are disappointed with your SKIL BY8705-00 battery. Please reach out to our SKIL customer service team so we can assist with any questions or concerns by sending a direct message on Facebook, Instagram, LinkedIn, or X. Thank you for your review!
Written by a customer while visiting skil.com
Customer Rating
1 out of 5
1
Blown away by how bad the 2.5ah battery is
on September 5, 2026
Posted by: SKIPPER50
I have had the PWR core 40 blower now for 2 years. It came with the worst battery i have ever used. This battery does not live up to the Skil name. So disappointing. I took it off the charger and pressed the button in it and it told me if was fully charged, 4 green bars. Just as soon as i conected it to the blower and checked the power again it read 2 green bars.. I hadn't even used it yet, i It gave me 12 minutes worth of use before it died. I have never gotten more then 15 minutes use from the battery since i bought the blower..so then i have to get out my gas back pack blower to finish the job . A more reliable machine. I bought the Skil blower because i had surgery on my lower back and the blower was to heavy for my back. I have read a lot of negitive reviews on this battery. I would not recommend this product. I have read that you want customers to get in tough with you throught social media. i don't do social media if you and to contact me you can get me through my e-mail
Response from skil.comBy SKIL Customer Support, September 8, 2026
Hi there, Skipper50! We are very sorry to hear that you have had a negative experience with your battery. Depending on speed setting on the blower, it could be a normal run time. Higher speed settings shorten your overall run time due to the higher power draw. As you do not have social media, if you would like us to take a closer look, please give us a call at 1-877-754-5999. Thank you!
Written by a customer while visiting skil.com
Customer Rating
5 out of 5
5
Strong life and power.
on August 8, 2026
Posted by: Kuber
Gender:Male
Verified Purchase:Yes
Battery life can last for two mows on 1/2 acre of grass.
I would recommend this to a friend!
Written by a customer while visiting skil.com
Customer Rating
1 out of 5
1
Leaking Pwrcore 40 2.5 AH
on July 30, 2026
Posted by: Sonny1210
from Torrance, Ca
Gender:Male
After a few years old the battery started leaking and now dead. I don’t want to spend a bunch of money to replace it. I
Have replaced all my cord tools with Skil
Hopefully not a bad choice.
No, I would not recommend this to a friend.
Response from skil.comBy SKIL Customer Support, August 4, 2026
Hi there, Sonny1210! We are sorry to hear that this occurred. We would be happy to take a closer look and see what warranty options are available to you. Please reach out to SKIL by sending us a direct message on Facebook, Instagram, LinkedIn or X. Thank you!
Written by a customer while visiting skil.com
Customer Rating
5 out of 5
5
5 years and counting, blower motor is still going
on June 30, 2026
Posted by: Anonymous
Verified Purchase:Yes
Have been using these batteries with my blower for 5 years now. Excellent products.
I would recommend this to a friend!
Written by a customer while visiting skil.com
Customer Rating
1 out of 5
1
Bad battery
on June 28, 2026
Posted by: Boomerdon
from Houston
Gender:Male
Verified Purchase:Yes
All three of these batteries that I have leak, and two quit working entirely
No, I would not recommend this to a friend.
Response from skil.comBy SKIL Support Team, June 29, 2026
Hi there, Don! Thank you for reviewing your SKIL BY8705-00 batteries. We're sorry to hear that they are leaking and two of them have quit working. The leaking substance is likely phase change material. It is not battery acid and it is not toxic, but we recommend discontinuing use of the batteries. Please reach out to our SKIL customer service team via direct message on Facebook, Instagram, LinkedIn, or X to see how we can assist you. We appreciate your review!
Written by a customer while visiting skil.com
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