Renault in Gloucester tried to scam me (twice) by wanting to charge nearly £400 for a battery. I went to Battery Mega Store and bought a far better Bosch that 100% matched the codes from Renault. 2nd... See more
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
Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
Company details
Written by the company
UK-based power company specialising in electrical solutions ranging from batteries for cars, caravans and mobility scooters all the way to industrial off-grid setups including solar panels, lithium-ion batteries and top-end inverter-chargers.
Contact info
Unit 29, Alexandra Way, GL20 8NB, Tewkesbury, United Kingdom
- 01684 298800
- salesteam@bmstechnologies.co.uk
- www.batterymegastore.co.uk
No recent history of asking for reviews
This company hasn't invited customers recently, so reviews may not be representative
Replied to 80% of negative reviews
Typically replies within 1 week
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Why go anywhere else
Callum at BMS is a "Top Man"! Great warranty process supported by the fastest email replier of any company I have dealt with. Excellent.
Excellent Customer Service!
Have used BMS a few times now, they have become my 'go to' for replacement batteries. I made a rookie error with my latest order, but one simple call on a Monday morning and Victoria had everything speedily arranged for their courier to perform a rapid 'swap-over'. Great follow-up to double confirm all details and the exact Courier schedule. This was wonderful Customer Service. Will be continuing to use and recommend BMS going forward!!
Delivery charges are ridiculous for…
Delivery charges are ridiculous for small parcels - £7.50 for a fuse?

Reply from BMS Technologies LTD
Callum was very helpful
Callum was very helpful, sorted my issue out and replied to emails very quickly answering all my questions.
A1 service after being let down by another supplier
After being let down by another supplier I spoke with Callum on Friday afternoon. He took my order and immediately sent the two batteries I needed urgently. They both arrived well packed on Monday morning. Thank you to the Callum and the team at BMS.
will buy again- good price with helpful…
will buy again- good price with helpful and accurate when they would be able to have some japanese style batteries in stock than the usual wait until what turns up on next months bulk delivery
Callum Davis has given me great service…
Callum Davis has given me great service again today when researching and identifying the correct stop/start car battery my neighbour needed.
Callum's professionalism and attention to detail has been appreciated previously on several occasions in the past couple of years when I sourced replacement batteries for my Bentley Arnage, Renault Master van & Fiat Panda. Callum & BMS Technologies are my first choice to contact when a battery is required.
faulty product resolved
Had an issue with a faulty product, which of course was frustrating. However I was able to get through to a very helpful man named Callum immediately with almost non wait time and he was extremely polite and helpful and resolved my issue.
Great service, would shop with them again.
Very helpful support via email
Missed an item off my order and they were very helpful via email adding it on to the previous order without having to pay for 2 sets of postage.
Great service and prices for all the Victron kit I've bought from them.
Excellent Customer Service
I called their team for advice about solar batteries, and they were incredibly helpful. They explained everything clearly and helped me choose the right product. Fantastic experience overall!
I called their team for advice about…
I called their team for advice about solar batteries, and they were incredibly helpful. They explained everything clearly and helped me choose the right product. Fantastic experience overall!
Very profesional atitude from the…
Very profesional atitude from the begining , with real desire to help and solve the situation .
There is nothing that could have been done better, so David , 5 stars go to you .
Thank you .
Faulty battery and no replacement. Stay clear.
Battery was sent nice and quick in March. Less than 6 months later having issues with it. Went away for a week and came back to dead battery. Breakdown recovery came out and they confirmed faulty battery. Their message to me was...
The voltage of 13.88 is the output of your alternator and should be between 13.5 and 14.5v. So although yours is low it should be sufficient
I contacted BMS and surprise surprise they won't send a replacement even though it has something like a 3 year warranty.
BMS response was... Sorry, we've had a bit of a tech backlog, so I've been waiting for them to have a spare moment. They have said that the charging parameter for the battery state it should be 14.2-14.4, so unfortunately the battery is being consistently undercharged which would cause a performance decline.
Funny road recovery saying one thing and BMS saying something different.
Very disappointed and will never use them again. Stay clear as if anything goes wrong you won't get a replacement.

Reply from BMS Technologies LTD
Very impressed with the level of…
Very impressed with the level of service. When my battery failed after a few months, Kieran handled everything efficiently and ensured a replacement was delivered the next day. Great customer care and follow-up.
Order was promised today
Order was promised today. Due to their error, it was not shipped. I called. They have now realised their mistake and shipped my order for delivery tomorrow, but I’ve explained that this has caused me a massive problem. They have flatly refused to refund the carriage charges for the late delivery caused by their error. I’ll not use them again. I have used them many times over the years. Shockingly poor customer service.
Reliable Batteries and Great Service
I ordered a lithium-ion battery from Battery Megastore and it arrived in perfect condition. The quality is excellent and it’s been performing really well. Customer service was quick to answer my questions and the delivery was faster than I expected. I’ll definitely be coming back when I need more gear.
Came across this company that supply…
Came across this company that supply victron units. Spent an awful lot of money on the latest equipment delivery arrived not the full delivery then it took some time to get the various parts I needed when it all arrived people were saying I didn't need the equipment in the first place cables were not correct everything is still in the box not being used four months later and the after sales is terrible. Still waiting a month later for a email if they can recommend any victron installers no email has arrived

Reply from BMS Technologies LTD
Brought inverter in their ebay store…
Brought inverter in their ebay store very slow to turn up but when it did it was faulty. Company put me through to there technical team who asked for it to be posted back but at my cost £18. They tested it and stated correct faulty and had it approved from victron to replace it. Broken promise after broken promise they are going to sort this out and send me the replacement but nothing still waiting. Avoid this company as they had rubbish customer service which if your order is fine then understand 5* but you just need to look at all the negative reviews of how bad they are when things go wrong. I will never use this company again.
Its a shame with your update that you respond better to negative reviews than trying to sort out with your customer direct. I appreciate things do go wrong sometimes but the lack of contact from you still makes my review valid. Had I not continously chased over weeks for update I would have heard nothing so use this company at your own risk

Reply from BMS Technologies LTD
Best Customer Service EVER!!
Renault in Gloucester tried to scam me (twice) by wanting to charge nearly £400 for a battery. I went to Battery Mega Store and bought a far better Bosch that 100% matched the codes from Renault. 2nd scam from Renault was "the battery doesn't fit" - so Renault are deliberately misleading customers to buy their massively overpriced one. Back to BMS, who then rematched the battery and even refunded the difference. Kieran & Bryannah went above and beyond to help me - been a long time since I've had service anywhere near as good. If I could, I'd give them 10 stars!
I needed a Leisure Battery for my…
I needed a Leisure Battery for my campervan. Thank you Keiran for your excellent help. Greatly appreciated as you took the time to find the best option & I received it the very next day. All now fitted & working well. Great service. Great price & nothing too much trouble.
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.
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.







