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.

Filter

17,065 Verified Customer Reviews

17,065 Customer Ratings and Reviews

Shopper Approved collects trusted reviews from customers who have made a verified purchase.

4.7

Overall Star
Rating

5 Shopper Approved - Review Star
13K+
(77.8%)
4 Shopper Approved - Review Star
3092
(18.1%)
3 Shopper Approved - Review Star
621
(3.6%)
2 Shopper Approved - Review Star
46
(0.3%)
1 Shopper Approved - Review Star
34
(0.2%)

Product Satisfaction
4.8
5 Shopper Approved - Review Star
2333
4 Shopper Approved - Review Star
345
3 Shopper Approved - Review Star
54
2 Shopper Approved - Review Star
12
1 Shopper Approved - Review Star
14
Delivery Time
4.8
5 Shopper Approved - Review Star
2302
4 Shopper Approved - Review Star
345
3 Shopper Approved - Review Star
77
2 Shopper Approved - Review Star
16
1 Shopper Approved - Review Star
18
Price Satisfaction
4.7
5 Shopper Approved - Review Star
2089
4 Shopper Approved - Review Star
539
3 Shopper Approved - Review Star
115
2 Shopper Approved - Review Star
10
1 Shopper Approved - Review Star
5
Customer Service
4.6
5 Shopper Approved - Review Star
224
4 Shopper Approved - Review Star
39
3 Shopper Approved - Review Star
11
2 Shopper Approved - Review Star
5
1 Shopper Approved - Review Star
6
SHOW DETAILS

5-star reviews
13K+

5-star reviews

11 years collecting 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.

Filter
D
Shopper Approved - Verified Customer David B.
7 hours ago , MI

easy to find the battery that I needed.

Product Satisfaction
5/5
Price
5/5
Delivery
5/5

Merchant Choice

exact match to the battery in the chairlift

EnerSys Genesis NP3.4-12 Sealed Lead Battery 12V 3.4Ah
EnerSys Genesis NP3.4-12 Sealed Lead Battery 12V 3.4Ah
Read more reviews about this product

7 hours ago

Matched the manufacture original product.


V
Shopper Approved - Verified Customer Vickey H.
Today , IL

So gar so good hope this is 5he correct one Northern Tool sent the wrong one


E
Shopper Approved - Verified Customer earl H.
1 day ago , TN

so far so good

Product choice

it seems most compatible

Merchant Choice

replacing my battery


J
Shopper Approved - Verified Customer Jonathan V.
1 day ago , MT

seems easy enough!

Product choice

It fits

Merchant Choice

Unique battery I have not been able to find for a few years. Friend recommended OSI


C
Shopper Approved - Verified Customer Craig K.
1 day ago , KY

Simple easy to use website

Product choice

.

Merchant Choice

Had the battery I needed


K
Shopper Approved - Verified Customer kathy H.
2 days ago , MD

These arrived with at least a partial charge. I couldn't determine if they had a partial or full charge though, so I charged them for eight hours.

Product Satisfaction
5/5
Price
5/5
Delivery
5/5

Product choice

Torches needed batteries.

Merchant Choice

Lowest price

Maglite MAG Charger Rechargeable Flashlight Battery NiCd
Maglite MAG Charger Rechargeable Flashlight Battery NiCd
Read more reviews about this product

2 days ago

Nice to find these obsolete batteries.

They arrived with at least a partial charge. I have now way of telling if it is a partial or full charge , so I stuck them in the flashlights and charged them for eight hours.


P
Shopper Approved - Verified Customer pamela T.
2 days ago , MD

So easy to find my exact products!

Product choice

I am purchasing two used LifeFitness cardio machines and picking them up this weekend. The current owner said he used to order his batteries on amazon. I prefer using 'other than amazon' when possible.

Merchant Choice

Google searched and your site was simple and to the point. The first review I saw was "they're the only place I can find this battery".


A
Shopper Approved - Verified Customer Alex R.
2 days ago , LA

Fast and Easy!!

Product choice

I wanted the same replacement battery

Merchant Choice

Great price!!


K
Shopper Approved - Verified Customer Kay P.
3 days ago , TN

good

Product Satisfaction
5/5
Price
5/5
Delivery
5/5

Merchant Choice

Had the symbol battery I was looking for

Product choice

it was the same as the device currently has

Symbol 82-111734-02 Battery 2500mAh Li-Ion 18.5Wh
Symbol 82-111734-02 Battery 2500mAh Li-Ion 18.5Wh
Read more reviews about this product

3 days ago

scan gun batteries

Batteries were just as we expected and they work great


J
Shopper Approved - Verified Customer jim K.
5 days ago , MO

website is slow and hard to use

Product choice

only place that had replacement lawnmower batter

Merchant Choice

only place that had this battery in stock


G
Shopper Approved - Verified Customer Glen M.
1 week ago , AR

Quick and easy. Answered questions I had promptly.

Product choice

Correct battery for scooter.

Merchant Choice

Pricing and availability


D
Shopper Approved - Verified Customer Daniel G.
1 week ago , CA

Very clear and easy ordering process.

Merchant Choice

You had what I needed at a good price.

Product choice

Because I have 2 ceiling lifts.


L
Shopper Approved - Verified Customer Leslie S.
1 week ago , OH

Easy to use. Found what I wanted.

Product choice

Customer needs

Merchant Choice

Best price


A
Shopper Approved - Verified Customer Anonymous Customer
1 week ago , KY

Great customer service


M
Shopper Approved - Verified Customer Mark E.
1 week ago , FL

Very easy

Merchant Choice

Availability of what we need


J
Shopper Approved - Verified Customer James A.
1 week ago , CT

good


K
Shopper Approved - Verified Customer Karin Q.
1 week ago , OH

thank you

Product choice

the last set of batteries worked

Merchant Choice

used before


C
Shopper Approved - Verified Customer Christa C.
1 week ago , CA

Great

Product choice

Only one for my elliptical

Merchant Choice

Cheaper than manufacturer


R
Shopper Approved - Verified Customer Roosevelt C.
1 week ago , MI

very prompt

Merchant Choice

it's what the manufacturer had used originally.


B
Shopper Approved - Verified Customer Benita O.
2 weeks ago , AL

It was user friendly. It was easy.

Product choice

Good quality

Merchant Choice

Past order


Why Trust Verified Reviews?

Verified Reviews are real, authentic reviews collected from actual paying customers, using Shopper Approved's Verified Review Platform. When reviews are Verified by Shopper Approved, you know that you can trust them to make better buying decisions.

Unverified Reviews on the other hand, are reviews collected by Open Review platforms that allow anyone to leave a review, without any validation or proof of purchase. Unfortunately, most reviews you read online are Unverified Reviews, and can't be trusted.

As a consumer, here's how you can tell the difference:

Verified Reviews from Verified Review Platforms like Shopper Approved, have much higher review counts and higher overall Star ratings, because they attempt to collect reviews from every single paying customer.

Unverified Reviews from Open Review Platforms, tend to have much lower review counts and more negative Star ratings, because people with bad experiences are primarily those who leave reviews. This often creates a misleading, inaccurate portrayal of a companies true reputation.

So, when searching for Verified Reviews, look for the name you know you can trust. Shopper Approved.

Are you a Business?

See What Shopper Approved
Can Do For You

Inactive Business
Website

© 2023 ShopperApproved.com. All rights reserved. Learn more about Shopper Approved.

This Shopper Approved Customer Rating and Review Certificate was generated using independent survey information gathered by Shopper Approved, LLC © 2023