Ignitions and Electrical Charging Systems

RELION

6V 400AH - 903 VRLA

$591.65

SKU: R094 REV-L16-400

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Relion Battery R4000 Dry Series is a 6-volt AGM battery designed for deep cycle applications in RVs, marine vehicles, and solar energy systems. It offers a 400 Ampere-hour capacity, outperforming traditional lead-acid batteries for high consumption needs.

This battery features a sealed, zero-maintenance design, eliminating concerns about gassing, corrosion, or explosion risks. Constructed from durable polypropylene, it provides ultra-fast charging and discharging capabilities with a low self-discharge rate for extended shelf life. It boasts a short circuit current of 4500 Amperes and a maximum charge current of 100 Amperes for efficient performance and a longer cycle life.
Show original supplier description
6V 400AH - 903 VRLA

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRELION
Part NumberR094 REV-L16-400

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy