Description
BAINTECH BTBLUELITH12/300 Lithium Battery 12.8v 300AH Bluetooth - Premium High-Capacity LiFePO4 Deep-Cycle Battery with Bluetooth Monitoring and 250A Continuous Discharge
Power the most demanding applications reliably with the Baintech 12.8V 300Ah Lithium Battery—featuring advanced LiFePO4 (lithium iron phosphate) chemistry delivering superior performance and longevity over traditional lead-acid batteries, massive 300Ah capacity providing extended runtime for large caravan house systems, expedition boats, off-grid installations, and high-demand applications requiring substantial energy storage, integrated Bluetooth connectivity enabling real-time battery monitoring and management through smartphone app, intelligent Battery Management System (BMS) protecting against overcharge, over-discharge, over-current, short circuit, and temperature extremes, exceptional 250A maximum continuous discharge current suitable for powering large inverters, air conditioning, heavy-duty equipment, and multiple high-current accessories simultaneously (500A when paired), compact design with smallest footprint in market (345x190x245mm) maximizing capacity within standard installation space, IP67 waterproof rating providing protection against dust and water immersion suitable for marine and outdoor applications, wide operating temperature range (-20°C to +60°C) enabling year-round reliability in Australian conditions, efficient charging accepting up to 150A charge current for rapid battery recovery, AS/NZS 3001.2:2022 compliant meeting current Australian safety standards, IEC 62619 accredited ensuring internationally recognized quality and safety, backed by comprehensive 5-year warranty providing long-term confidence, and premium ultra-high-capacity deep-cycle lithium solution for large motorhomes with multiple air conditioners, expedition vessels, off-grid homes, solar energy storage systems, backup power installations, commercial mobile applications, and installations requiring maximum reliable lightweight high-performance battery power with advanced monitoring capabilities.
Product Overview
The Baintech 12.8V 300Ah Lithium Battery delivers professional-grade ultra-high-capacity LiFePO4 technology providing superior performance, longevity, and reliability for the most demanding applications requiring substantial energy storage—designed specifically for large Australian motorhome installations, expedition marine house banks, off-grid homes, and commercial systems where energy demands require maximum battery capacity without weight penalties of equivalent lead-acid systems. LiFePO4 chemistry offers significant advantages including 3000-5000+ cycle life (versus 300-500 for lead-acid), consistent voltage delivery throughout discharge maintaining equipment performance until nearly depleted, 100% usable capacity (versus 50% for lead-acid) effectively doubling available energy, negligible self-discharge enabling long-term storage without maintenance charging, and 70% lighter weight reducing vehicle payload and improving fuel efficiency particularly significant for high-capacity installations. 300Ah capacity provides massive energy storage—3.84kWh total energy (300Ah x 12.8V) suitable for powering large motorhome systems including multiple refrigerators, air conditioning, lighting, water pumps, entertainment equipment, and numerous accessories through extended off-grid periods without recharging or enabling operation of high-demand equipment impossible with smaller batteries including extended air conditioning operation, power tools, or multiple simultaneous high-current loads. Integrated Bluetooth connectivity transforms battery management—smartphone app displays real-time state of charge percentage, voltage, current (charging or discharging), individual cell voltages, temperature, cycle count, and alarm history enabling informed energy management decisions and early problem detection critical for high-capacity systems where battery status essential to operational planning and represents substantial investment requiring monitoring protection. Built-in BMS provides comprehensive protection—monitors and balances individual cell voltages maintaining optimal performance particularly important for high-capacity batteries where cell imbalance causes significant capacity loss, prevents overcharge damage by disconnecting charging sources when full, protects from over-discharge by disconnecting loads at minimum voltage (10V cutoff), limits discharge current preventing damage from excessive loads or short circuits, and includes over-temperature protection shutting down battery if safe operating temperature exceeded. 250A continuous discharge capability supports substantial loads—3000W continuous at 12V enabling operation of multiple large inverters, commercial equipment, or high-demand residential applications simultaneously without voltage sag or performance degradation, particularly valuable for off-grid homes, large expedition vehicles, commercial mobile installations, or marine applications with significant electrical demands exceeding capabilities of standard batteries. Compact design despite massive capacity (345x190x245mm) represents industry-smallest footprint for 300Ah lithium batteries—remarkably achieves 50% more capacity than 200Ah model in identical physical dimensions through advanced cell technology and efficient packaging enabling installation in standard large battery boxes replacing multiple lead-acid batteries with single ultra-high-capacity lithium. IP67 waterproof rating provides robust environmental protection—sealed construction withstands dust, dirt, and temporary water immersion (1 meter for 30 minutes) suitable for marine installations, under-vehicle mounting, outdoor applications, and harsh Australian conditions including dust, humidity, and occasional water exposure critical for protecting substantial battery investment. Wide operating temperature range (-20°C to +60°C for discharge) accommodates extreme Australian conditions from alpine winter camping to outback summer heat maintaining reliable performance year-round though charging limited to 0°C to +55°C preventing lithium plating damage during cold-temperature charging. Fast charging capability accepts up to 150A charge current (0.5C rate) enabling rapid battery recovery—alternator charging through appropriate DC-DC charger, substantial solar array, or high-output mains charger can restore battery to full capacity in 2-3 hours compared to 15-25 hours for equivalent lead-acid enabling efficient energy management in off-grid applications. AS/NZS 3001.2:2022 compliance ensures battery meets current Australian electrical safety standards for recreational vehicles and marine craft—critical for insurance, compliance certification, and safety assurance particularly important for high-capacity installations where safety standards scrutinized carefully. IEC 62619 accreditation demonstrates internationally recognized quality and safety testing—batteries tested for electrical, mechanical, thermal, and environmental performance meeting stringent international standards particularly rigorous for high-capacity batteries where energy storage increases safety risks. App-based reset button provides convenient battery reset capability—resolves minor BMS faults, clears protection triggers after fault resolution, or resets battery parameters without physical access to battery location particularly valuable for batteries installed in difficult-access locations under floors or in sealed compartments. Five-year warranty demonstrates manufacturer confidence in battery quality and longevity—comprehensive warranty coverage protects substantial investment and provides recourse if manufacturing defects or premature failures occur within warranty period critical for high-capacity batteries representing significant financial commitment. Professional installation essential ensuring proper BMS integration, appropriate high-capacity charging equipment (high-output DC-DC charger or lithium-compatible solar controller), correct fusing and cable sizing for 250A capability requiring minimum 50mm² cables, and system configuration optimized for lithium battery characteristics and ultra-high-current applications.
Key Features
300Ah Ultra-High-Capacity LiFePO4: Massive 300Ah capacity provides 3.84kWh total energy suitable for extended off-grid periods with multiple high-demand equipment. Powers typical caravan refrigerator for 6-9 days, supports extended air conditioning operation (4-5 hours), multiple LED lights, water pumps, entertainment equipment, and accessories without recharging. 100% usable capacity effectively provides energy equivalent to 600Ah lead-acid battery. 50% more capacity than 200Ah batteries enabling longer independence or operation of equipment combinations impossible with smaller batteries. Ideal for large motorhomes, off-grid homes, or expedition vessels requiring maximum energy storage.
250A Exceptional Continuous Discharge: Remarkable 250A maximum continuous discharge supports substantial loads and most demanding applications. Adequate for powering 3000W inverter continuously enabling multiple air conditioners, commercial equipment, power tools, or numerous high-current accessories simultaneously. 500A capability when two batteries paralleled supporting 6000W loads for off-grid home or commercial applications. Highest discharge capability in Baintech range enabling operation of equipment requiring brief ultra-high currents without voltage sag. BMS current limiting protects battery—automatically restricts current if loads exceed rating preventing overheating or cell damage.
Integrated Bluetooth Monitoring: Built-in Bluetooth enables comprehensive real-time battery monitoring through smartphone app. Displays state of charge percentage, voltage, current, individual cell voltages, temperature, cycle count, and alarm history. App-based reset button provides convenient battery management and fault resolution. Remote monitoring essential for high-capacity systems where battery represents substantial investment—make informed decisions about energy usage and charging needs. Early fault detection through alarm history and cell voltage monitoring prevents problems before failures occur critical for protecting premium battery investment.
Intelligent Battery Management System: Comprehensive BMS protects battery and connected equipment critical for high-capacity installations. Cell balancing maintains optimal individual cell voltages maximizing performance and longevity particularly important for 300Ah capacity where cell imbalance causes significant capacity loss. Overcharge protection disconnects charging at 14.6V preventing damage. Over-discharge protection disconnects loads at 10V cutoff protecting cells. Over-current protection limits discharge to 250A continuous (500A brief peaks or paired batteries). Short circuit protection responds instantly. Over-temperature protection monitors battery temperature shutting down if safe limits exceeded. Automatic protection reset after fault resolution.
150A Ultra-Fast Charging Capability: Accepts up to 150A charge current (0.5C rate) enabling rapid battery recovery in 2-3 hours from 20% to 100%. Compatible with high-output DC-DC chargers (100-150A models), large solar arrays (1500-1800W with appropriate MPPT controllers), and high-capacity mains chargers providing appropriate charging profile (14.2-14.6V). Ultra-fast charging reduces generator runtime substantially, maximizes solar harvest during optimal sun hours, and minimizes time at powered sites. Higher charge acceptance than smaller batteries—300Ah capacity enables faster absolute charging without exceeding safe C-rate. Requires appropriate high-capacity charging equipment.
IP67 Waterproof Rating: Sealed construction provides robust environmental protection rated IP67—complete dust protection and withstands water immersion to 1 meter for 30 minutes. Suitable for marine installations, under-vehicle mounting, outdoor applications, and harsh Australian conditions. Protects internal electronics and cells from dust, dirt, humidity, rain, and accidental water exposure. Sealed terminals prevent corrosion in marine environments. Ruggedized construction withstands vibration, shock, and mechanical stress critical for protecting high-capacity battery investment in mobile installations.
Compact Design for Massive Capacity: Industry-smallest footprint (345x190x245mm) for 300Ah lithium battery maximizes capacity within standard installation space. Remarkably identical dimensions to 200Ah model despite 50% more capacity through advanced cell technology. Despite massive capacity, dimensions enable installation in standard large battery boxes and locations designed for dual lead-acid batteries. Weight approximately 32-38kg (70% lighter than equivalent 600Ah lead-acid) reduces vehicle payload substantially. Multiple batteries can parallel for extraordinary capacity—two batteries provide 600Ah (7.68kWh), three provide 900Ah (11.52kWh) supporting off-grid homes or extensive commercial requirements.
Wide Operating Temperature Range: Discharge operation -20°C to +60°C accommodates extreme Australian conditions from alpine cold to outback heat. Maintains consistent performance across temperature range particularly important for high-capacity installations where temperature-induced capacity loss significantly impacts available energy. Charge temperature limited 0°C to +55°C preventing lithium plating damage. BMS temperature monitoring prevents operation outside safe limits. Consider installation location—avoid direct sun exposure causing excessive temperature particularly critical for high-capacity batteries generating more heat during high-current operation.
AS/NZS 3001.2:2022 Compliance: Meets current Australian electrical safety standards for recreational vehicles and marine craft. Compliance critical for insurance coverage, vehicle compliance certification, and regulatory requirements particularly important for ultra-high-capacity installations where safety standards scrutinized most carefully. Updated standard reflects current safety requirements. Compliance demonstrates appropriate testing for electrical safety, mechanical robustness, thermal management, and protection systems essential for high-capacity batteries. Documentation available for compliance inspections or insurance requirements.
IEC 62619 Accreditation: Internationally recognized safety and performance standard for lithium batteries. Comprehensive testing includes electrical performance, mechanical strength, thermal abuse testing, environmental exposure, and safety validation particularly rigorous for ultra-high-capacity batteries where energy storage increases safety risks significantly. Accreditation demonstrates battery meets rigorous international standards beyond basic compliance. Provides confidence in battery safety and quality—accredited batteries undergo extensive testing validating safe operation under normal and fault conditions critical for high-capacity installations representing substantial investment.
5-Year Warranty Coverage: Comprehensive warranty provides long-term confidence and investment protection particularly valuable for ultra-high-capacity batteries representing substantial financial investment. Covers manufacturing defects, premature capacity loss, BMS failures, and component defects occurring within warranty period. Warranty registration required activating coverage. Excludes damage from misuse, improper installation, incorrect charging equipment, physical damage, or operation beyond specifications. Warranty demonstrates manufacturer confidence in product quality and longevity. Substantially longer than typical lead-acid battery warranty reflecting superior lithium durability.
Technical Specifications
|
|
| SKU |
BTBLUELITH12/300 |
| Product Type |
Lithium Battery |
| Brand |
Baintech |
| Battery Chemistry |
LiFePO4 (Lithium Iron Phosphate) |
| Nominal Voltage |
12.8V |
| Capacity |
300Ah |
| Energy |
3.84kWh (300Ah x 12.8V) |
| Maximum Continuous Discharge |
250A (500A when paired) |
| Cut-Off Voltage |
10V (BMS over-discharge protection) |
| Charging Voltage |
14.2V to 14.6V (CC/CV mode) |
| Recommended Charge Current |
150A maximum (300A for two batteries) |
| Operating Temperature (Discharge) |
-20°C to +60°C |
| Operating Temperature (Charge) |
0°C to +55°C |
| Cycle Life |
3000-5000+ cycles (to 80% capacity) |
| Self-Discharge |
<3% per month |
| Bluetooth |
Yes - Smartphone App Monitoring |
| Battery Management System |
Integrated BMS with Protection |
| Protection Features |
Overcharge, Over-Discharge, Over-Current, Short Circuit, Over-Temperature |
| IP Rating |
IP67 (Dust and Water Resistant) |
| Dimensions |
345mm x 190mm x 245mm (L x W x H) |
| Weight |
Approximately 32-38kg |
| Terminals |
M8 Bolts (typical for lithium batteries) |
| Compliance |
AS/NZS 3001.2:2022, IEC 62619 |
| Warranty |
5 Years |
| Applications |
Large Motorhomes, Off-Grid Homes, Expedition Vessels, Commercial Mobile, Solar Storage, High-Demand Systems |
Frequently Asked Questions
Q: What applications require 300Ah capacity versus smaller batteries?
A: 300Ah suits large motorhomes with multiple air conditioners, off-grid homes requiring multi-day autonomy, expedition vessels with substantial electrical loads, commercial mobile applications, or installations running high-demand equipment extended periods. Provides 3.84kWh energy—runs 2000W air conditioning 1.5-2 hours, 1000W loads 3-4 hours, or combination moderate loads 24+ hours. Essential for applications where 200Ah insufficient or weight savings from single large battery preferable to multiple smaller batteries.
Q: What size inverter can this battery support and what charging equipment do I need?
A: Supports 3000W continuous inverter (250A x 12V). For charging: DC-DC charger 100-150A, solar 100-150A MPPT controller handling 1200-1800W array, mains charger 80-150A lithium-compatible. All chargers must provide lithium/LiFePO4 profile (14.2-14.6V). 150A charge capability enables 2-3 hour recovery from 20% to 100%. High-capacity charging equipment required to utilize fast-charging capability—standard 40-60A chargers underutilize battery capacity.
Q: How does 300Ah lithium compare to traditional lead-acid battery bank?
A: 300Ah lithium provides usable energy equivalent to 600Ah lead-acid (100% versus 50% usable). Replaces three 200Ah lead-acid batteries while weighing 70% less and occupying significantly less space. Voltage remains stable throughout discharge—equipment operates normally until depleted. Faster charging (150A versus 30-40A typical for lead-acid), longer lifespan (3000-5000 cycles versus 300-500), no maintenance. Initial cost higher but superior lifetime value considering replacement frequency and performance.
Q: Can I parallel multiple 300Ah batteries and what total capacity would that provide?
A: Yes, can parallel for extraordinary capacity. Two batteries provide 600Ah (7.68kWh, discharge 500A), three provide 900Ah (11.52kWh, discharge 750A), four provide 1200Ah (15.36kWh, discharge 1000A) suitable for off-grid homes or extensive commercial requirements. Use identical batteries (same model, age). Connect with heavy cables—minimum 16mm² recommended, 25mm² preferred for dual battery. Proper fusing on each battery. BMS in each provides independent protection. Bluetooth monitors each individually.
Q: Is professional installation required for this battery?
A: Strongly recommended due to high capacity and current capability. Requires proper cable sizing (minimum 50mm² for 250A), appropriate fusing (300A ANL or mega fuse typical), high-capacity charging equipment (100-150A), correct BMS integration, and system configuration for lithium characteristics. Incorrect installation risks fire hazard, equipment damage, or premature battery failure. Professional installers understand high-current system requirements ensuring safe reliable installation. Investment in proper installation protects substantial battery investment.
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