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Samlex 12v 15 Amp 3 Bank Automatic Smart Charger SEC-1215UL

Was: $169.70
Sale Price: $137.49
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This unit will charge your batteries and power your load at the same time!

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Product InformationStore Part Number: SEC-1215UL


This Samlex America SEC-1215UL is an advanced fully automatic three-stage 15 Amp marine battery charger. It is ideal for charging all types of 12 Volt lead-acid batteries ( Flooded / Absorbed Glass Mat (AGM) / Gel Cell) from a 120 V, 60 Hz or 230 V, 50 Hz AC source. By means of a DIP switch setting, conversion to a two-stage algorithm is possible to charge batteries connected to a DC load (DC UPS). The unit can also be used as a DC Power Supply. Features include overload and short-circuit protection. The unit allows charging of up-to 3 separate battery banks.

Charger should be mounted in vertical position in dry, well ventilated location.

Typical applicatons:


Recreational vehicles

Marine communications sites

Battery back-up systems


  • Advanced switch-mode design
  • User selectable 2 or 3 stage charging
  • Can be used as Power Supply
  • Safe for gel cell batteries
  • Easy Mounting system
  • Maximum charging current of 15 Amps
  • Fully automatic operation
  • Light weight and compact
  • Reverse polarity connection protected
  • Optimal 3 Step Charging
  • Demand Sensing
  • Reverse Polarity Protection
  • Over Voltage Protected
  • Short Circuit Protection
  • Overload Protection
  • Line Regulation
  • Ammeter
  • 2 Year Warranty
  • Standard 458, FCC Compliant

Tech Specs

  • Dimensions (LxWxH): 8.4 x 8.4 x 3.25 in
  • Weight: 4.2 lb
  • Shipping Weight: 6.0 lb
  • Max Current, During Bulk Charge: 15 A
  • Absorption Voltage: 14.0/14.4 V Switchable
  • Nominal Input Voltage (Preset): 120 VAC, 60 Hz, 3.3A
  • AC Input Volts: 120/230 V Switchable
  • Model: SEC-1215UL
  • Manufacturer: Samlex
  • AC Input Volts Freq.: 50/60 Hz
  • AC Input Volts Range: 100–260 V
  • Float Voltage: 13.5 V
  • Working Temperature: 0° to +40° C
  • Output Banks: 3
  • Regulatory Approval: ROHS Compliant
  • Manufacturer Part #: SEC-1215UL
  • UPC: 622988083013

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Reviews and Ratings

4.75 Average
5 Stars 3
4 Stars 1
3 Stars 0
2 Stars 0
1 Stars 0
Rated 4.75/5 Stars from 4 customer reviews.

Do you own the SEC-1215UL? Please, tell us what you think about it. It helps us provide you with better products. Please note that it may take up to 72 hours for your review to appear.

Samlex 12v 15 Amp 3 Bank Automatic Smart Charger SEC-1215UL
Pros: It works magnificently
Cons: You need to do internal modifications to change between 120 VAC and 220 VAC
Is this review helpful?
Written by on Jan 21, 2014. Ownership: Just Bought. Knowledge Level: Genius is my way of life — (94 of 175 customers found this review helpful
i would not buy from anyone else
Pros: Battery Stuff staff was evry helpful in helping me chose the right charger for my application. they even credited me the first one i purchased by mistake without hesitation. the charger I have now works great and I am very happy with mny purchase.
Cons: none
I wish I knew this company years ago. purchased a charger 3 years ago and it died after 9 months had a replacement shipped to me and that one died after 7 months. I never went back.
Is this review helpful?
Written by on Sep 24, 2013. Ownership: Just Bought. Knowledge Level: AC/DC is more than a band — (86 of 165 customers found this review helpful
Super Dependable, Great Design
Pros: I can't say enough good things about these units. "SAMLEX IS THE BOMB!" ("bomb" used to mean bad, but my kids tell me it now means GREAT! - I can still learn. Yes, an Old Dog - with some new tricks...). SUPER DEPENDABLE! Out of 7 units running 24/7/365 for 7 years, one failed, but it was not the unit's fault. I chalk it up to "education" of a new employee.
Cons: They aren't free.
We run all of our computer servers on DC power supplies designed for computers in police cars. 7 Samlex units (6 15 amp and 1 30 amp units) Keep Twenty 22 amp Gel Cell batteries charged in 7 groups and these 7 circuits supply 18 servers and Six 12 VDC External Disk Arrays. Regular UPS units KILL COMPUTERS (the Relay Change-over is a NASTY JOLT to your systems) and converting AC to DC only to have to go back to AC then back to DC in the computer power supply is nothing less than STUPID (and it wastes a lot of energy).
Is this review helpful?
Written by on Mar 16, 2018. Ownership: When it goes, I'm giving it a eulogy. Knowledge Level: AC/DC is more than a band — (6 of 9 customers found this review helpful
Excellent Product
Wish I would have found you guys first! Prices can’t be beat!!! Purchased the exact same item off Amazon and it was $100 more!! Free shipping and fast delivery is always a plus! I’ll be back in the future for all my battery equipment needs for sure!
Is this review helpful?
Written by on Aug 11, 2020. Verified Purchase — (1 of 2 customers found this review helpful

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Manuals & Tutorials


Chargers Tutorial

Why does it read 13 volts?

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