U1-40 Lithium Deep Cycle 12V | 38AH
Inventus Power U1LiFe Series

U1-40 Lithium Deep Cycle 12V | 38AH

Group Size: U1

Voltage: 12V

AH @ 20hr: 38 Ah

Energy @ 20hr: 491.52 Wh

Terminal Type: 1/4-20 Female Thread Terminal

Dimensions In. (mm): 8.22 x 5.39 x 7.28  (209 x 137 x 185)

Weight Lb. (kg): 12.95 (5.87)

    Availability: In Stock

    Free same day pickup or next day shipping.

    Pickup Instructions
    Shipping & Returns
    Recycle & Save
    Product Information
    Pickup instructions
    Shipping & returns
    Recycle & save

    We supply convenient pickup locations in all major cities across Canada within 20 km of the city center. Proceed to checkout to select a location near you.

    We do not provide the full addresses online as our locations are exclusively for pickup. Upon ordering, you will receive the address in a pickup confirmation email. To schedule a pickup or for further information, please contact us.

    Canada Wide Pickup
    Our pickup locations are in London, Mississauga, Kingston, Ottawa, Sudbury, Thunder Bay, Montreal, Sherbrooke, Lévis (Quebec City), Moncton, Vancouver (Delta), Kelowna, Fort McMurray, Grand Prairie, Edmonton, Calgary, Saskatoon, Regina, Winnipeg and Halifax.

    Picking Up Your Order
    Our pickup locations are open Monday to Friday, 8am to 5pm and products are available for same day pickup, unless marked otherwise. Upon receiving your pickup email, we hold your product(s) for 5 business days and will have your order ready upon arrival during our regular business hours.

    Our warehouses provide convenience with bay doors and a helpful staff to facilitate your pickup. Please note that our locations are for pickup only and do not install or remove batteries from vehicles.

    We offer various shipping methods to accommodate your needs, including free business delivery, third-party shipping, free Canada wide shipping on select products and specialty carrier shipping to remote areas.

    Please note that products listed as "pickup only" are available for business delivery and third-party shipping. Contact a Voltloop representative on our toll-free number or by email to setup an account and receive a shipping quote.

    Free Business Delivery
    We supply free business delivery within a 100-kilometer radius of our facilities located in all major cities in Canada, including London, Mississauga, Kingston, Ottawa, Sudbury, Thunder Bay, Montreal, Sherbrooke, Lévis (Quebec City), Moncton, Vancouver (Delta), Kelowna, Fort McMurray, Grand Prairie, Edmonton, Calgary, Saskatoon, Regina, Winnipeg and Halifax. Contact us to setup an account and qualify today.

    Pickup Only Products
    Products marked as "pickup only" are not available for shipping through our online checkout. Please contact us to schedule business delivery or for specialty carrier delivery options.

    Returns, Refunds and Warranties
    Voltloop offers a 30-day return policy on select items, as well as full refunds for orders cancelled prior to processing, which normally takes one day. In addition, our products are backed by industry-leading manufacturer warranties, which are noted on each product page. For additional information, please see our terms and conditions.

    Specialty Carrier Shipping
    We provide specialty carrier shipping for remote locations with our nationwide distribution system. We have access to carriers and distribution points to facilitate delivery to any location in Canada and the United States. Please contact a Voltloop representative to receive a quote and shipping schedule.

    Third Party Delivery
    We offer third-party delivery options through UPS, FedEx, Canada Post, and USPS for orders shipped to Canada and the United States. At checkout, delivery times and pricing are calculated automatically. Products marked as "pickup only" are not available for shipping online, but please contact us and we can provide you with alternative delivery options and prices.

    Free Canada Wide Delivery
    We offer free Canada wide delivery on select products offered online. Product pages marked as "free shipping" will be available for $0 delivery at checkout with no prequalification necessary.

    No hidden core fees, plus we give you money back to recycle your old battery. All of our pickup locations are registered recycling depots, so when you pick up your new battery, we can recycle your old one and give you money back.

    Battery Exchange
    Battery scrap values depend on current market prices and vary based on size and chemistry. Prices are determined on location and are not subtracted from the original sale price.

    Batteries must be a minimum size to qualify for our money back program, with the approximate minimum size being a 35 lb. automotive battery. Please note that we do not remove or replace batteries in vehicles or equipment, and batteries must be removed before you proceed to our locations.

    A highly reliable, robust, longer-life solution for critical care medical carts. When powering your mobile medical cart, you can count on the U1LiFe™ Battery from Inventus Power. U1LiFe Series Batteries exceed the highest set of regulatory standards to provide clinicians with a reliable and safe power solution. They are a lighter weight, drop-in replacement for U1 size, 12 Volt Sealed Lead Acid (SLA) battery applications with the added benefit of an integrated microprocessor to provide host communication (SMBus 1.1), integrated cell and pack protection, and cell balancing circuitry.

    • Lithium Iron Phosphate Technology
    • Increased life cycles up to 10 times over Sealed Lead Acid
    • Three times the reduction in weight over conventional battery offerings
    • Cell-balancing circuitry to increase runtime and battery life
    • Integrated cell and pack protection
    • Customized safety circuitry, fuel gauges and firmware design
    • Multiple communication platforms including I2C & SMBus
    • Dual RJ45 Connection Ports
    • Applications Include: Patient Monitoring, Mobile & Portable Ultrasound, Medical Carts, Portable X-Ray

    Available in three different configurations (U1-40 (491Wh), U1-45 (573Wh) and the powerful U1-50 (655Wh), U1LiFe Series Batteries feature Lithium Iron Phosphate technology, which is the safest and most environmentally-friendly battery chemistry available today. Plus, with a cycle life in the thousands, maintenance time & costs are reduced, thus delivering a low total cost of ownership over the lifetime of the product.


    48 Cells; 4S12P

    Max Charging Current @ 25°C

    20 Amps

    Nominal Voltage

     12.8 Volts


    12.95 lbs / 5.87 Kg

    Nominal Capacity

    38.4 Amp Hour

    Dimensions (LxWxH)


    Continuous Discharge Current

    20 Amps


    SMBus 1.1

    Pulse Discharge Current

    28 Amps < 10 secs
    50 Amps < 30 millisecs

    110 Amps < 15 millisecs

    310 Amps < 827 microsecs


    Operating Humidity

    20% to 80%

    Operating Temperature Range

    -20°C to +60°C

    Shipping Classification

    Class 9

    Storage Temperature Range

    -40°C to +60°C

    Battery Terminals

    1/4-20 Female Thread

    Maxiumum Charge Voltage

    14.4 Volts

    Case Flame Rating

    UL-94 V-0

    Float Voltage Charge

    13.8 Volts


    4 Year Manufacturer Limited Warranty