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12V to 13.8V 10A DC-DC Lead-Acid Battery Charger | Step up DC DC Converter

12V to 13.8V 10A DC-DC Lead-Acid Battery Charger | Step up DC DC Converter

$69.80 USD
$104.70 USD $69.80 USD
Promotion Épuisé
Frais d'expédition calculés à l'étape de paiement.

Charge Your Lead-Acid Battery Faster — Directly from Your 12V Power Source

Whether you're managing a dual-battery RV setup, charging a deep-cycle marine battery underway, or building a solar energy storage system, the Jason Bang 12V to 13.8V 10A Battery Charger delivers consistent, battery-safe charging current at the correct lead-acid voltage — no AC outlet, no bulky charger, no complexity.

At 138W continuous output, this module charges batteries up to 500Ah meaningfully and can maintain anything from a small engine start battery to a large AGM house bank. Mount it permanently in your installation or use it as a portable charging solution — the rugged aluminum-alloy case handles road and marine vibration without complaint.

Key Features

  • 13.8V Fixed Output: Matches absorption/float voltage for all standard lead-acid chemistry — prevents overcharge damage and battery sulfation
  • 10A / 138W Continuous: Suitable for charging or maintaining batteries from 50Ah to 500Ah capacity
  • 8–12V Input: Works on 12V vehicle systems, 24V truck electrical, and solar charge controller outputs
  • Compact & Mountable: 74×74×32mm footprint with mounting flanges — installs anywhere in battery compartments, junction boxes, or under seats
  • Full Protection: Reverse polarity, short-circuit, overcurrent, and thermal shutdown keep both the module and your battery safe
  • High Efficiency ≥93%: Very low heat generation — runs cool even in enclosed installations

Technical Specifications

Parameter Specification
Input Voltage Range 8V – 12V DC
Output Voltage 13.8V DC (fixed)
Output Current 10A continuous
Output Power 138W
Conversion Efficiency ≥93%
Operating Temperature -20°C to +65°C
Dimensions 74 × 74 × 32 mm
Weight 250g
Protections Short-circuit, Overcurrent, Reverse polarity, Over-temperature
Compatible Battery Types Flooded Lead-Acid, AGM, VRLA, Gel (NOT for LiFePO4)

Typical Use Cases

  • 🚐 RV house battery charging — maintain 12V AGM house bank while driving or from solar
  • ⛵ Boat underway charging — charge service battery from engine alternator or small solar panel
  • ☀️ Off-grid solar storage — regulated 13.8V charge input for lead-acid battery banks
  • 🔧 Workshop battery maintainer — keep fleet vehicle batteries topped up between uses
  • 🏕️ Overlanding & camping — charge aux battery from starter battery or roof-mounted solar

Note: For LiFePO4 (lithium iron phosphate) batteries, 14.6V is the correct charge voltage. Please see our 14.6V LiFePO4 Charger to avoid cell damage.

Caractéristiques du produit

Engineered for harsh environments with IP67/IP68 waterproof protection, ultra-stable output, and full safety protections. Compact, efficient, and built to last up to 100,000 hours, backed by a 1-year warranty.

Matériaux et entretien

We specialize in creating the best Customer Experience possible and we guarantee you fast shipping, exceptional product and 30 days Returns.

Conseils de marchandisage

We offer FedEx/DHL/UPS express shipping services. Processing 1–3 business days；Delivery US 7–10 business days；International 7–20 business days.

  • Made with Love in the CN
  • 30 Days Returns
  • Fast Shipping Times
Afficher tous les détails
Variante Total des variantes Quantité Prix Total des variantes
12V to 13.8V 10A 138W
12V to 13.8V 10A 138W
$104.70
$69.80/pièce
 $0.00
$104.70
$69.80/pièce
 $0.00

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  • Customization Available

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“Tested it in my setup—voltage is stable and performance is dependable.”

— Mark T.