OSI Batteries is an authorized factory-direct distributor with custom production capabilities, delivering professional battery solutions worldwide.
INDUSTRY LEADER
OSI Batteries has been a leader in the battery business as a full-line replacement battery company for over 50 years. We are an authorized factory-direct distributor and value-add center of specialty batteries, chargers, and related products from top manufacturers in the industry. OSI delivers professional battery solutions to businesses, medical organizations, and government agencies who rely on battery power to get their jobs done.
MANUFACTURING
We operate our own in-house battery assembly division capable of custom production orders of any size. OSI is now the master distributor for all Unipower batteries, products, and accessories, and also develops and sells its own brand of quality aftermarket replacement batteries for two-way radios, medical devices, UPS systems, emergency lighting, PLCs, barcode scanners, utility meters, and much more.
SERVICE
Our customer service team has years of experience finding the right battery solution. Servicing an extensive customer base from military and public safety departments, to schools, hospitals and everyday people, OSI is ready to help with your next battery purchases. Whether it is an OEM replacement battery, an aftermarket battery, or a custom battery, our team delivers personalized, one-on-one customer service and battery advice. We stand behind every order, and ordering is easy and convenient by phone, email, or our website.
KNOWLEDGEABLE
Our experienced staff provides our customers with extensive knowledge in all aspects of the battery business. From battery assembly knowledge to battery market experience, working with OSI ensures you receive a comprehensive battery buying experience you can depend on.
RELIABLE
OSI prides itself in providing a reliable, stress-free battery buying experience, and ensures we carry only the highest quality products, while providing fast and accurate delivery.
OSI is your One Source in Batteries. We can help power your day, because we know batteries.
16,753 Verified Customer Reviews
16,753 Customer Ratings and Reviews
Shopper Approved collects trusted reviews from customers who have made a verified purchase.
4.7
Overall Star
Rating
5-star reviews
About this Company
OSI Batteries is an authorized factory-direct distributor with custom production capabilities, delivering professional battery solutions worldwide.
INDUSTRY LEADER
OSI Batteries has been a leader in the battery business as a full-line replacement battery company for over 50 years. We are an authorized factory-direct distributor and value-add center of specialty batteries, chargers, and related products from top manufacturers in the industry. OSI delivers professional battery solutions to businesses, medical organizations, and government agencies who rely on battery power to get their jobs done.
MANUFACTURING
We operate our own in-house battery assembly division capable of custom production orders of any size. OSI is now the master distributor for all Unipower batteries, products, and accessories, and also develops and sells its own brand of quality aftermarket replacement batteries for two-way radios, medical devices, UPS systems, emergency lighting, PLCs, barcode scanners, utility meters, and much more.
SERVICE
Our customer service team has years of experience finding the right battery solution. Servicing an extensive customer base from military and public safety departments, to schools, hospitals and everyday people, OSI is ready to help with your next battery purchases. Whether it is an OEM replacement battery, an aftermarket battery, or a custom battery, our team delivers personalized, one-on-one customer service and battery advice. We stand behind every order, and ordering is easy and convenient by phone, email, or our website.
KNOWLEDGEABLE
Our experienced staff provides our customers with extensive knowledge in all aspects of the battery business. From battery assembly knowledge to battery market experience, working with OSI ensures you receive a comprehensive battery buying experience you can depend on.
RELIABLE
OSI prides itself in providing a reliable, stress-free battery buying experience, and ensures we carry only the highest quality products, while providing fast and accurate delivery.
OSI is your One Source in Batteries. We can help power your day, because we know batteries.
Today , TN
Always use OSI for my battery purchases. Very reliable product.
Merchant Choice
Repeat customer
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Purchased before
1 day ago , MN
Fast, easy, convenient
Merchant Choice
Love them and they're local.
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Was told to order it by our Maintenance guy.

1 day ago
Exactly what I expected.
1 day ago , GA
SIGHT IS EASY TO USE
Merchant Choice
OSI HAS THE PRODUCT I NEED
Product choice
P440 PRISM CEILING LIFT
3 days ago , MA
Fully compatible battery. Low shipping rate. Easy to use ordering on website.
Merchant Choice
Fully compatible battery. Low shipping rate.
Product choice
Looking for reliable battery source for UPS with reasonable shipping cost.
4 days ago , TX
Very simple to place the order
4 days ago , TX
Easy to find what you need
Merchant Choice
Experience
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Fits my radios
6 days ago , CA
Quick and easy
Merchant Choice
Was the same as the original
Product choice
Same one
1 week ago , KS
Was very easy to place an order.
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Needed.
Merchant Choice
Say the battery listed cheaper.
1 week ago , FL
good so far - need a replacement battery for a medical device wanted to find a reputable company
Merchant Choice
company reviews looked good
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medical suction machine stopped charging for portability
1 week ago , CA
Easy website to use and purchase
Merchant Choice
B.B. Battery preference and OSI is about the only vendor that I could find.
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OEM replacement for JNC660 jump start
1 week ago , TX
So far pretty good
Merchant Choice
Only one that I could find
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Only one that I could fine
1 week ago , KY
It went well.
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Just did. Thank you!
Merchant Choice
I need it. I wouldn't be paying the shipping cost if I didn't need the battery.
1 week ago , WV
Quick and easy.
Merchant Choice
Price and first offering
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Needed to replace the same item.
1 week ago , PA
We've purchased these batteries for years and we are pleased with our cooperation with OSI
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Our daughter has a Voyager track lift.
1 week ago , AR
My shopping experience is good.
Merchant Choice
I chose this because it was a reasonable price.
Product choice
This product is needed.
1 week ago , CA
Easy to navigate site. Clearly laid out information.
Merchant Choice
They had what I was looking for and for a good price.
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Replacement items in existing equipment
1 week ago , AZ
Same as OEM + better price. thank you.
Merchant Choice
Google search

1 week ago
great value instead of buying a new battery from the manufacturer. Thank you!
2 weeks ago , NY
Very satisfied
Merchant Choice
it’s for my generator
Product choice
Needed it for my generator
2 weeks ago , GA
easy to use
Merchant Choice
had exactly what i needed
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OEM
2 weeks ago , MD
Ordered the battery online and paid for it but never received the battery.
Merchant Choice
The online retail ad made it look like an acceptable company.
Product choice
Replacement for a battery on an exercise stationery bike.

2 weeks ago
Never received it. Waited about 3 weeks. Finally went went somewhere else.
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