RB300-HP

12V 300Ah
Deep Cycle Lithium Battery
Group 8D

RB300-HP

12V 300Ah
Deep Cycle Lithium Battery
Group 8D

The RB300-HP is a lithium iron phosphate powerhouse battery for use in RV and in many marine applications including sailboats and catamarans. It's the perfect compromise between the unique demands of starting service and deep cycling, low amp draw service.

$2,699.95

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ENGINEERED IN THE USA

United States Of America White 230216 103954

US-BASED SUPPORT

Warranty White 230216 103954

10 YEAR WARRANTY

Features

Temperature Tolerant

Lithium batteries can handle a wide variety of conditions and are even 2.5x more efficient at low temperatures than lead-acid while being able to safely operate up to 149°F (65°C).

Lightweight

RELiON lithium batteries provide more power than lead-acid batteries and are typically half the weight. Boosting both performance and agility on the water.

Eco-Friendly & Safe

RELiON lithium batteries are the ultimate clean energy. No gassing, no fumes, and no pollution. Enjoy reliable power, while protecting the environment, using these non-hazardous batteries.

Constant Power

Full power available throughout discharge. Voltage does not drop like lead-acid.

Maintenance Free

Plug, play, and charge. No watering, no corrosion.

Specifications

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Electrical Specifications

Nominal Voltage 12.8 V
Nominal Capacity 300 Ah
Capacity @ 25 A 720 min
Energy 3840 Wh
Resistance ≤30 mΩ @ 50% SOC
Efficiency 99%
Self Discharge <3% per Month
Series Connections No. 12V systems only.
Parallel Connections No. 1 battery only.

Mechanical Specifications

Dimensions (L x W x H) 20.6 x 10.5 x 8.7” (522 x 267 x 220 mm)
Weight 82.7 lbs (37.5 kg)
Terminal Type M8 x 1.25
Terminal Torque 80 - 100 in-lbs (9 - 11 N-m)
Case Material ABS
Enclosure Protection IP66
Cell Type - Chemistry Cylindrical - LiFePO4

Discharge Specifications

Maximum Continuous Discharge Current 100 A
Peak Discharge Current 800 A (2 s)
Discharge Over-Current Protection 1000 A ±100 A (2.2 ±1 ms)
Recommended Low Voltage Disconnect 11 V
Discharge Under-Voltage Protection 9.2 V (2.3 ±0.08 vpc) (4.2 ±0.5 s)
Reconnect Voltage 10 V (2.5 ±0.1 vpc)
Short Circuit Protection Response Time 200-600 µs

Charge Specifications

Recommended Charge Current 15 A - 50 A
Maximum Continuous Charge Current 100 A
Charge Current 32ºF to 14ºF (0 to -10 ºC) ≤0.1 C (10 A)
Charge Current -4ºF to 14ºF (-20 to -10 ºC) ≤0.05 C (5 A)
Recommended Charge Voltage 14.2 V - 14.6 V
BMS Charge Voltage Cut-Off 15.4 V (3.85 ±0.025 vpc)
(1 ±0.2 s)
Reconnect Voltage 14.6 V (3.65 ±0.05 vpc)
Balancing Voltage 14.4 V (3.6 ±0.025 vpc)

Temperature Specifications

Discharge Temperature -4 to 140 ºF (-20 to 60 ºC)
Charge Temperature* -4 to 113 ºF (-20 to 45 ºC)
Recommended Storage Temperature 23 to 95 ºF (-5 to 35 ºC)
BMS High Temperature Cut-Off 176 ºF (80 ºC)
Reconnect Temperature 122 ºF (50 ºC)
*Refer to charge currents below 0°C (32°F)

Compliance Specifications

Certifications UN38.3, UKCA & CE (battery)
UL1642 (File# MH62098) (cells)
IEC62133 (cells)
Shipping Classification UN 3480, CLASS 9

TYPICAL LITHIUM IRON PHOSPHATE CHARACTERISTICS

Charge Voltage Char Chart 12 V graph
Charge Voltage Soc Chart 12 V graph
Discharge Voltage At Various Rates 12 V graph
Discharge Voltage Chart 12 V graph
Life Vs Lead Acid Chart graph
Cycle Life Vs Depth Discharge Chart graph

Reviews

Peter R.

I had a terrible experience with 3x 225ah 8D batteries. The 50% to 80% SOC zone is not much power storage. I've added 2x 300HPs and while I only installed them 5 days ago so far so good. The power storage and more consistent voltage at just about any SOC has enabled installing an inverter and being able to use it, making stays on the hook a much easier experience.

Peter R.

Sep 3rd, 2020

I had a terrible experience with 3x 225ah 8D batteries. The 50% to 80% SOC zone is not much power storage. I've added 2x 300HPs and while I only installed them 5 days ago so far so good. The power storage and more consistent voltage at just about any SOC has enabled installing an inverter and being able to use it, making stays on the hook a much easier experience.

The RB300-HP Is Great For Powering

Anchor V2 230216 114031

Marine

Recreational 230216 114025

RV

All About RELiON's High Performance Batteries

Read about the benefits and capabilities of the HP Series lithium batteries.

Learn More About the HP Series

Understanding Your Battery: Terms To Know

Understanding the basics of battery ratings and terminology is important when comparing and selecting the right type and number of batteries for your application to ensure you have enough energy to meet your energy goals.

Learn More About LiFePO4 Battery Terms

We're Invested In Our Lithium Iron Phosphate Batteries

Lithium Certifications Recycling 1000X300