100Ah Low Draw (LD) Lithium Iron Phosphate Battery – No Bluetooth | DCS

Engineered for Reliability. Built for Harsh Conditions. Designed for Smarter Power.

The DCS 100Ah Low Draw (LD) Lithium Iron Phosphate (LFP) Battery is the perfect entry point into the world of lithium power. Engineered for rugged environments and mobile applications, this no-Bluetooth model is ideal for systems with external battery monitoring—providing the performance and reliability of DCS's top-tier batteries at a more accessible price point.

Whether you're building out a camper van, upgrading your off-grid setup, or need reliable power for marine, overland, or 4x4 use, this battery is trusted by professionals and tested in extreme environments.

 

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Key Features

• No Bluetooth: Built for users with external battery monitoring systems—skip the built-in Bluetooth and save on cost.

• DCS 3S BMS & Active Balancing System: Advanced, military-grade Battery Management System ensures long life and consistent performance.

• Vibration Tested: MIL-STD-810G Method 514.6 certified—battle-tested in the Australian Outback.

• Lightweight & Compact: Only 22 lbs, perfect for weight-sensitive builds.

• Cycle Life: Over 2000 full cycles at 100% Depth of Discharge (DOD) with 80% capacity retention.

 

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Technical Specifications

• Nominal Voltage: 12V

• Nominal Capacity: 100Ah

• Dimensions: 12.047" x 6.614" x 8.307"

• Weight: 22 lbs

• Cell Type: Cylindrical LFP Cells (3.2V 20Ah)

• Chemistry: Lithium Ferro Phosphate (LFP)

• Cycle Life: 2000 Cycles @ 100% DOD (to 80% capacity at 77°F)

• Max Charge Voltage: 14.6V

• Max Charge Current: ≤50A

• Recommended Charge Current: ≤35A

• Max Discharge Current: ≤100A

• Ingress Protection: IP54

• Terminal Type: M8 Stainless Steel / Copper

• BMS: DCS 3S 100A with built-in short circuit, overcharge, and over-discharge protection

 

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Why Choose the DCS LD 100Ah Battery?

Purpose-Built for Mobile Power

Tested in real-world rugged terrain, the LD series is trusted for use in overland vehicles, 4WD systems, camper vans, and marine applications.

Lower Cost, Same DCS Quality

Get all the core benefits of DCS technology—long cycle life, premium cells, and proprietary BMS—without the added cost of Bluetooth connectivity.

Compact Power

A single LD battery supports up to a 1200W inverter and integrates easily into custom battery banks and vehicle systems.

 

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Advanced Engineering Highlights

• DCS 3S BMS (Battery Management System): Custom-developed to handle vibration and heat extremes while maintaining optimal performance.

• Active Cell Balancing (CMS): Keeps all cells in balance for longevity and safe, efficient charging.

• Designed for Harsh Conditions: MIL-Spec durability ensures reliable performance across extreme heat, vibration, and high-load scenarios.

 

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Applications

• Camper Vans & Overland Rigs

• Off-Grid Solar Systems

• RVs and 4x4 Touring Setups

• Marine & Boat House Battery Banks

• Remote Communications Equipment

• Mobile Workshops and Field Gear Power

 

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Important Notes:

• This version does not include Bluetooth monitoring.

• For Bluetooth-enabled models, explore the full line of DCS Smart Batteries.

• For optimal safety and performance, always install according to your system specs.

 

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Power your adventures with confidence—choose the DCS 100Ah LD Battery and experience industry-leading lithium performance without compromise.

 

 

Frequently Asked Questions – DCS Lithium Batteries

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What happens if I completely discharge my DCS battery?

If a DCS LFP battery is fully depleted, the Battery Management System (BMS) will activate a protective shutdown by opening the battery terminals. This removes resistance in the system and prevents damage to the cells.

To wake up the battery:

• The BMS requires a 12V signal with at least 1A of current to "wake up."

• Most modern lithium-compatible chargers and solar regulators will initiate a slow recovery charge to wake the BMS.

• If your charger cannot wake the BMS, connect an unregulated solar panel directly to the battery terminals (ensure all loads are disconnected).

Important: The battery should never be left in a fully discharged state as this will result in irreversible cell damage. Always integrate a low-voltage cutoff system to prevent full discharge and follow the storage procedures in the user guide.

 

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What is Active Cell Management?

DCS batteries use Active Cell Balancing, a method that redistributes charge among individual cells during charge and discharge cycles. This ensures:

• Maximized available energy

• Increased battery lifespan

• Reduced risk of thermal runaway and cell degradation

Unlike passive balancing, which dissipates excess energy as heat, active balancing efficiently moves charge from high to low cells in real time.

 

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What is the best way to store my DCS battery?

For long-term storage:

1. Fully charge the battery to 100%.

2. Disconnect all loads and chargers.

3. Store for a maximum of 3 months.

4. Perform a full discharge and recharge cycle every 3 months (at least 4 cycles per year) to maintain cell health.

 

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What battery monitor settings should I use?

Use these settings when configuring external battery monitors:

• Charged voltage: 14.0V

• Tail current: 4%

• Charged detection time: 1 minute

• Peukert exponent: 1.05

• Charge efficiency: 98%

• Current threshold: 0.1A

• C-rate: Based on your battery’s capacity (e.g., 1C for 100Ah = 100A)

 

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Can I use a voltage-sensing relay (VSR) between different battery chemistries or capacities?

No. VSRs connect batteries in parallel, which can cause:

• Uneven charging

• Accelerated degradation of both batteries

For example, pairing a 60Ah lead-acid battery with a 120Ah AGM or lithium battery via VSR will damage both packs over time.

Solution: Use a DC-DC charger, which isolates the two systems while safely transferring energy from the starter to the auxiliary battery, regardless of chemistry or size.

 

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If both batteries are identical, can I use a VSR?

Yes, but lithium batteries have a unique voltage curve. You must use a programmable VSR to dial in the correct parameters.

Alternative: For simplicity and efficiency, connect the batteries in parallel and use a load disconnect (e.g., Victron Smart Battery Protect) to safeguard against over-discharge instead of relying on a VSR.