Battery 101 Reviews 53

TrustScore 4.5 out of 5

4.5

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

See what reviewers are saying

Rated 5 out of 5 stars

Super quick delivery, lowest price I could find and perfect product. Was looking for an oddball battery for a Moon bike light. Had no luck anywhere until I found B101 site. Perfect transaction and ar... See more

Company replied

Rated 5 out of 5 stars

Ordered 4 Samsung 25R 18650 Li ion battery with solder tabs late yesterday afternoon - my Christmas present (mobile vac cleaner) arrived with 2 dead batteries, supplier was very good refunded the co... See more

Company replied

Rated 2 out of 5 stars

I bought 4 batteries 18650 after two weeks batteries went down contacted seller and advised me and sent me video link how to revive them,followed the link but no luck,tried to contact seller again by... See more

Company replied

Rated 5 out of 5 stars

I rarely write reviews, but the service from Simon and team was fantastic. I'd been searching high and low for a very specific battery type and connector, to fix my Lezyne Macro Drive 600XL, and havin... See more

Company replied

Company details

  1. Battery Store
  2. Vaporizer Store

Written by the company

We at Battery 101 is an online only business based in England, Dorset and carry a range of battery sizes and chemistry types, from the common AA, AAA, C, D and 9V batteries, to high-powered lithium and lithium-ion cells, to specialty lithium polymer packs for hobbyists. We aim to supply top quality products at an affordable price.


Contact info

4.5

Excellent

TrustScore 4.5 out of 5

53 reviews

5-star
4-star
3-star
2-star
1-star

Replied to 100% of negative reviews

Typically replies within 1 week

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 1 out of 5 stars

2 batteries 18650 bought and both are…

2 batteries 18650 bought and both are doa, 4 puffs on my vape and they go from fully charged to empty. not happy and a waste of money

November 8, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

Dear Graham,

We’re sorry to hear that the batteries you purchased haven’t worked well with your vape device.

After checking your order, we noticed that you purchased 2 x 18650 3.2V LiFePO₄ cells with a 10A maximum discharge rate. These particular cells aren’t suitable for vaping devices, which require Li-ion 3.7V high-drain batteries capable of handling at least a 20A discharge current.

It’s an easy mistake to make - many people assume all 18650 batteries are the same, but different chemistries perform very differently. The LiFePO₄ batteries you purchased aren’t designed for vaping use; they don’t provide the correct voltage or power output, and using them in a vape device could be very unsafe. We strongly recommend discontinuing their use with your device.

Each battery is clearly marked “NOT FOR VAPE” on the battery sleeve, and this is also clearly stated on the product page.

We truly value your feedback and always want our customers to have a positive experience with us. If you could kindly consider updating or retracting your review to reflect this clarification, we’d greatly appreciate it, as the issue stems from a compatibility misunderstanding rather than a product fault.

If you’d like, we’d be more than happy to help you choose the correct batteries for your vape - just let us know what model or specifications your device uses, and we’ll point you in the right direction.

Kind regards,

Rated 5 out of 5 stars

Exactly what I wanted

Super quick delivery, lowest price I could find and perfect product. Was looking for an oddball battery for a Moon bike light. Had no luck anywhere until I found B101 site. Perfect transaction and arrived 1 working day after my order via Royal Mail.

September 15, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your positive feedback - we’re glad you had a good experience!

Rated 5 out of 5 stars

Customer Service that goes above and beyond.

Battery 101 [hereafter referred to as B.101] offer a very wide range of battery products, competitively priced with free delivery on orders over £12. My review however will focus on my first ever B.101 order and purchase of Lithium Ion Rechargeable 18650 batteries.

18650 batteries ideally should follow the 18650 standard which is 18mm diameter and be 65mm long, hence the 18 65 0 product code [the 0 denotes a round profile battery]. But not all 18650 batteries are 65mm long.

All the online battery sellers I looked at did not state battery length in their listings, this makes it very difficult to order the right product if your equipment requires a specific battery type and size. The battery dimensions and all other technical specification data are clearly documented on the B.101 site and supported by a wide range of 18650 battery types & configurations [i.e. Flat Top, Button Top, Protected & Unprotected in a range of mah power ratings], this made it very easy to order the right battery first time.

Or at least it would do, if one does their battery selection correctly without error. Which unfortunately I did not. I made an error and ordered the wrong length battery as I had not done my 'homework' correctly and taken accurate measurements of the battery I was replacing. I only realised my error at the 11th hour and had a 2 hour window of opportunity to cancel & reorder my order before it was too late and my incorrect order shipped.

Given the urgency of this task, I looked for a telephone number to ring but could not find one and had to resort to using the online B.101 contact form. Given that many other sites rarely respond to form [email] contact the same day I did not hold out much hope of quickly resolving my error issue.

How wrong I was. I got an email response from B.101 [Simon Lee] within 20minutes confirming my order cancellation and that a refund had been processed. Five minutes after that I got an automated PayPal email confirming the refund. I then reordered the correct batteries I should have ordered and Simon emailed me straight back to confirm that my reorder had been processed and would be shipped that evening.

I am a prolific Internet shopper and this level of Customer Service I received was far beyond my normal Internet shopping experience with other retailers. B.101 will be my battery supplier of choice from now on based upon this very first order experience.

Just to note, unusually for an online retailer, there does not appear to be any option to set up a 'customer account' and each order is raised and processed on an 'ad-hoc' basis.

August 20, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

We really appreciate your positive feedback - it was a pleasure working with you!

Rated 5 out of 5 stars

A super fast and efficient service

A super fast and efficient service, provided by Simon Lee, following my enquiry, which I was provided with sound advice, I placed my order, this was dispatched the same day and was with me ahead of schedule.
All in all, worthy of my 5 star award.
Not to mention the item was purchased at a very competitive price!

July 18, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

We really appreciate your positive feedback - it was a pleasure working with you!

Rated 5 out of 5 stars

I rarely write reviews but......

I rarely write reviews, but the service from Simon and team was fantastic. I'd been searching high and low for a very specific battery type and connector, to fix my Lezyne Macro Drive 600XL, and having no luck at all. I emailed Simon and, whilst they didn't stock the proprietary connector, he was able to custom fit a battery with the cables and talk me through everything I needed to solder and shrinkwrap the old connector onto the new cabling. Such prompt replies via email, when I'm so used to customer service emails sitting in a group mailbox for 3 days minimum! Very personalised, super responsive, would really recommend.

May 1, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you very much for your positive feedback !

Rated 5 out of 5 stars

Excellent Service

Great etailer, my goods arrived in great condition & precisely on time.
I'm impressed & I reccomend this company 👌

March 12, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your kind feedback! It is highly appreciated.

Rated 5 out of 5 stars

Quick delivery of a replacement battery

Quick delivery of a replacement battery for my Garmin watch and it was easy to replace. It should be like new now, as the original had 6 years of use but yet to be proven 👍

January 16, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for the positive feedback! It is highly appreciated.

Rated 5 out of 5 stars

Ordered 4 Samsung 25R 18650 Li ion…

Ordered 4 Samsung 25R 18650 Li ion battery with solder tabs late yesterday afternoon - my Christmas present (mobile vac cleaner) arrived with 2 dead batteries, supplier was very good refunded the cost. So thought rather than chucking the cleaner I'd try and replace all 4 batteries and much to my delight its worked but was not as easy task. The batteries arrived early next morning!! excellent service.

Well packed and at a good price. Information on their web sit is also very helpful.

January 17, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you very much for your positive feedback !

Rated 5 out of 5 stars

Highly Recommended

Competitively priced. Good communication. Fast delivery. Excellent product. All you could ask for!

January 15, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you very much for your positive feedback !

Rated 5 out of 5 stars

Batteries

Very easy to deal with,I will use them again.Thank you.

December 20, 2024
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your feedback. It is highly appreciated!

Rated 5 out of 5 stars

Great Firm to deal with

Great Firm to deal with. Great service and good prices - very pleased with the 18650 batteries ordered and received

December 9, 2024
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your feedback. It is highly appreciated!

Rated 5 out of 5 stars

Recommended - Great Service

I needed a replacement battery for an electric toothbrush. There was a good selection of products available at reasonable prices. I selected premium delivery and the products arrived the next day. Would definitely use again for future purchases.

January 13, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your feedback. It is highly appreciated!

Rated 5 out of 5 stars

Speedy service

Speedy service, well packaged. Genuine quality product. Works as described. Well recommended supplier.

November 25, 2024
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your feedback. It is highly appreciated!

Rated 5 out of 5 stars

Very Efficient Company try them

Simple to find the correct items very swift despatch and a very easy efficient company to do business with. Fully recommend them

January 3, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your feedback. It is highly appreciated!

Rated 5 out of 5 stars

Great as always

Unfortunately one of the battery cases was smashed,but that dosent effect the product,which it probably would of been damaged on transit which isn't battery 101's fault

January 14, 2025
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your feedback. It is highly appreciated!

Rated 5 out of 5 stars

Excellent service

The quality of the bateries is very good. Every time received the corect item. The delivery is really very fast. Exellent service.

December 21, 2024
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your feedback. It is highly appreciated!

Rated 5 out of 5 stars

Bought batteries in mid' 2022, review email sent to me in Jan '25

I've not bought anything from battery101 since mid' 2022 but they have just sent me an email to review them!
I bought 2 pairs of 18650 Samsung 25R 2500 mAh flat top batteries, and at the time their service was quick, prices were good, and the batteries are still in use.
I'd use them again, but their email review system needs a little attention :)

January 17, 2024
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your feedback. It is highly appreciated!

Rated 5 out of 5 stars

Very good value and service

Very good value and service. I wouldn't hesitate to use them again.

January 15, 2024
Unprompted review
Battery 101 logo

Reply from Battery 101

Thank you for your feedback. It is highly appreciated!

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look