

















BMK 12V 5A Smart Battery Tender & Trickle Charger – 4-Stage Auto Maintainer
- £51.99
- £51.99
- Unit price
- per
Couldn't load pickup availability
Free UK Delivery on All Orders
Free Returns
Description
xReliable power when you need it
Meet the BMK 12V 5A Smart Battery Tender, a robust charger designed to bring 12V lead-acid batteries back to life more quickly than typical trickle models. Its diagnostic feature can reveal battery health before charging begins, aligning safety with efficiency for vehicles, boats, motorcycles, and seasonal gear.
Intelligent, four-stage maintenance
The device follows a precise four-stage sequence—Initialization, Bulk, Absorption, and Float. LED indicators provide a clear progress readout (25%/50%/75%/100%), and the charger automatically stops when the process completes. This combination reduces guesswork and protects battery longevity.
- Speeds up charging compared to 1A or 2A models
- Early detection of potential battery issues
- Supports Pb/SLA/VRLA/GEL/AGM chemistries
For long-term storage or seasonal use, the BMK charger acts as a smart trickle maintainer. A 72-hour safety window helps prevent overcharging on marginal batteries, while a constant pulse current helps minimize deep discharge during idle periods.
Portability, protection, and certification
With a lightweight build (about 15.87 ounces) and a rugged 10A fuse, this charger is ready for portable use at the garage, dock, or campsite. ETL certification confirms hardware safety, and BMK provides reliable after-sales support for peace of mind.
- Ultra-lightweight, easy to carry
- 10A fuse delivers dependable circuit protection
- ETL certified with responsive customer support
Whether you need a quick top-up before a road trip, a winter storage solution for a boat, or routine maintenance for lawn equipment, the BMK 12V 5A Smart Battery Tender offers practical, non-pressuring options for keeping your 12V lead-acid system ready. Individual results may vary based on battery age and condition.
FAQ
Q: Is this charger fully automatic?
A: Yes. It follows a four-stage cycle with automatic shut-off when charging is complete.
Q: What battery types are compatible with this tender?
A: It supports Pb/SLA/VRLA/GEL/AGM lead-acid batteries within 12V systems.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Complete Your Setup
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
Recently Viewed Products
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per
- £51.99
- £51.99
- Unit price
- per



