Direct: (503) 987-4002
Main: (503) 987-4000
Description
xTake the guesswork out of your lithium power system with the Expion360 BM350 Battery Monitor Kit with 500A Shunt. Designed specifically for LiFePO4 batteries, this high-precision monitor accurately tracks real-time battery performance — giving you a true “fuel gauge” for your RV, overland, marine, or off-grid setup.
Unlike basic voltage indicators, the BM350 uses a precision brass shunt to measure the actual current flowing in and out of your battery bank. This allows you to view true State of Charge (SOC) as a percentage (0–100%), along with real-time voltage, amps, watts, and remaining amp-hours — all displayed clearly on a backlit LCD screen.
Optimized for 12V, 24V, and 48V systems, the BM350 is the ideal monitoring solution for Expion360 LiFePO4 batteries and other lithium setups. With a 500A shunt capable of handling high surge loads, this kit delivers professional-grade monitoring accuracy and reliability for serious power systems.
Whether you’re boondocking, overlanding, or living off-grid, the Expion360 BM350 ensures you always know exactly how much power you have — and how much you’re using.
Features
xKey Features
- High-Precision 500A Shunt: Accurately measures current flow in and out of your battery bank.
- True State of Charge (SOC) Display: View remaining battery capacity from 0% to 100%.
- Comprehensive Power Data: Displays voltage, current (amps), power (watts), and remaining amp-hours.
- Backlit LCD Screen: Clear, easy-to-read display for day or night operation.
- Multi-Voltage Compatibility: Works with 12V, 24V, and 48V battery systems.
- Optimized for LiFePO4 Batteries: Ideal for Expion360 lithium battery systems.
- Complete Installation Kit Included: Includes shunt, display, bracket, data cable, and wiring components.
Fitment
xFitment
- Battery Compatibility: LiFePO4 (Lithium Iron Phosphate) Batteries
- System Voltage: 12V, 24V, and 48V Systems
- Application: RV House Battery Systems, Overland Vehicles, Marine Installations, Off-Grid Power Systems
- Shunt Rating: 500 Amp Capacity
- Installation Notes: Shunt must be installed on the main negative battery cable for accurate monitoring.
Shipping & Return
xShipping
We ship nationwide and internationally. Most in-stock items leave our shop within 1–3 business days. Made-to-order and oversized parts may require additional lead time; any special timing will be noted on the product page.
Order Processing
If an order is placed outside of our normal business hours (Monday–Friday), we will process it as soon as possible once our team is back in the shop during regular operating hours. Weekend orders will be handled the next business day.
Tracking & Delivery
- You'll receive a tracking email as soon as your order ships.
- We cannot ship to PO Boxes for oversized or freight items.
- Signature may be required for high-value shipments.
Freight & Oversize Items
- Large/oversized products (bumpers, racks, etc.) ship via LTL freight.
- Please inspect your delivery at arrival. Note any damage on the carrier’s paperwork and take photos before signing—this is required to file a claim.
- Residential freight includes curbside delivery; inside delivery/appointments may incur additional fees.
International Orders
- Duties, taxes, and import fees are the buyer’s responsibility and are not included at checkout.
- Some products may have export restrictions or carrier limits.
Order Changes & Cancellations
- Requests must be made within 24 hours of purchase when possible.
- Custom or built-to-order items may not be cancellable once production begins.
Returns & Exchanges
We want you stoked on your gear. Eligible items may be returned within 30 days of delivery for a refund or exchange.
Eligibility
- Items must be new, unused, uninstalled, and in original packaging with all hardware.
- Buyer is responsible for return shipping unless the return is due to our error or a confirmed defect.
- A restocking fee (typically 10–20%) may apply to non-defective returns to cover inspection, repackaging, and processing.
Non-Returnable Items
- Installed/used items, custom or made-to-order products, electrical/electronic components, clearance/“garage sale” items, and gift cards.
How to Start a Return
- Log in to your account and open the order, or contact us with your order number.
- We’ll issue return instructions and an RMA if approved. Returns without RMA may be refused.
- Pack securely; include all parts and paperwork. We recommend insured, trackable shipping.
Refunds
- Once received and inspected, approved refunds are issued to the original payment method within 3–5 business days.
- Original shipping charges are non-refundable (except in cases of our error or a confirmed defect).
Damaged, Defective, or Incorrect Items
- Please contact us within 7 days of delivery with photos of the product, packaging, and shipping label.
- For freight damage, ensure notes are made with the carrier at delivery and take photos before signing.
Warranty
Many products include a manufacturer warranty. We’re happy to help facilitate claims—reach out with your order number, photos, and a description of the issue.
Questions about shipping or returns? Get in touch—our team is here to help you get trail-ready.
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