Pay in installments of $48.62 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
100AH Lithium Battery - Rockarmor 4x4Rockarmor 100Ah Lithium Battery Power your next adventure with the Rockarmor 100Ah Lithium Battery, A lightweight, high performance power solution designed for 4WD touring, caravans, campers, boats, and off grid applications. Built with advanced lithium technology and an integrated Bluetooth enabled BMS, this battery delivers reliable power, faster charging, and longer service life compared to traditional AGM batteries. Specifications: Nominal
Rockarmor 100Ah Lithium Battery
Power your next adventure with the Rockarmor 100Ah Lithium Battery, A lightweight, high-performance power solution designed for 4WD touring, caravans, campers, boats, and off-grid applications. Built with advanced lithium technology and an integrated Bluetooth-enabled BMS, this battery delivers reliable power, faster charging, and longer service life compared to traditional AGM batteries.
Specifications:
- Nominal Voltage: 12.8V
- Capacity: 100Ah
- Energy: 1280Wh
- Weight: 8.98kg
- Dimensions: 260mm (L) x 168mm (W) x 208mm (H)
- Charge Cut-Off Voltage: 14.6V
- Discharge Cut-Off Voltage: 11V
- Standard Charge Current: 20A
- Maximum Charge Current: 100A
- Maximum Discharge Current: 100A
- Charge Temperature: 0°C to +45°C
- Discharge Temperature: -20°C to +60°C
- Recommended Storage Temperature: 0°C to +35°C
- Bluetooth BMS: Yes
- Series Connection: Up to 4 Batteries
- Parallel Connection: Up to 4 Batteries
- Terminal Type: 2 x M8 Terminals
- Battery Case Material: ABS
Features
- 100Ah Lithium Capacity
- Lightweight Design – Only 8.98kg
- Built-in Bluetooth Monitoring
- Advanced Battery Management System (BMS)
- High 100A Maximum Charge Current
- High 100A Maximum Discharge Current
- Compact Footprint for Easy Installation
- Suitable for 4WDs, Caravans, Campers, Boats & Off-Grid Systems
- Long Service Life & Fast Charging Capability
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 25 reviews
Sort
Product Reviews
★★★★★ 5
Clear, Practical Guide for Entry-Level to Intermediate Multifamily Underwriting
Format: Kindle
As someone learning multifamily underwriting from the ground up, this book was incredibly helpful. It breaks down complex underwriting concepts into a logical, step-by-step process that actually mirrors how deals are analyzed in the real world.
What I appreciated most is that the author doesn’t just show formulas — he explains why assumptions matter, where risk hides, and how underwriting decisions affect outcomes. The sections on operating expenses, stabilization, financing, and sponsor economics were especially valuable and gave me a much clearer framework for analyzing multifamily properties with confidence.
This book feels less like theory and more like a practical guide you can follow alongside a real underwriting model. I’d highly recommend it to anyone getting started in multifamily underwriting or looking to tighten up their analysis process.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2025
★★★★★ 5
Underwriting Multifamily
Format: Kindle
This book deserve a five star rating. It uses practical examples easy to follow. This well written book easy to understand. I recommend this book to any real estate investor.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2024
★★★★★ 5
Must Have Book for Investors or Sponsors/GPs wanting to Invest in Multifamily Properties!
Format: Paperback
If you understand the math and numbers associated with investing in real estate, this book will help you underwrite any multifamily property. Not only does Robert's book discuss how to gather the information needed for underwriting, he goes into detail on how sponsors can manipulate the numbers. This is a great book for knowledge on the pros and cons of varied partnership structures and how each can create an alignment of interest between limited partners (LPs) and general partners (GPs). Overall, this is a great easy read book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2020
★★★★★ 4
Basic knowledge of underwriting is necessary to understand.
Format: Paperback
This is a great guide for underwriting multifamily deals for someone with some basic to moderate knowledge of underwriting. I am a new student to this field and have to stop and google some of the acronyms. For a future version, I think adding an extra page for the acronyms used, definition and equation would be helpful. I think that the font could be larger and darker. Adding mathematical formulas in the book would provide visualization as well. Rob can also provide a sample OM for the reader to use with his underwriting model and compare to his completed one. Again, I am a newbie so my review may change as I gain knowledge in this area. I enjoyed listening to Rob on Youtube/Podcast and hope to learn more from him.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 27, 2020
★★★★★ 5
Easy to understand and well organized
Format: Paperback
Author makes complex concepts feel approachable and easy to comprehend. The content is sufficient to be an introductory course
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 22, 2025