Dyness 12V 100Ah Lithium Battery with Bluetooth
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Smart Bluetooth 5.0, real-time monitoring via Dyness APP.
Low-temp cut-off Protection, 32℉ charging off and -4℉ discharging off intelligently.
100A BMS with 20+ protections, overload protection with auto-recovery, resistance of moisture & salt-spray, pre-charge function.
IP65 Waterproof & Dustproof.
EV-grade LiFePO4 Cells, 4000+ cycles@100% DOD, 10 years lifespan.
1280Wh energy & 1280Wh max. continuous output power.
Suited in marine/camping/RVs/off-grid etc.
Max. 4P4S, to build a 51.2V 400Ah battery system (Max. 20.48kWh).
BCI Group 31 Size, L12.99*W6.77*H8.43 inch.
3 Charging ways & Max. 1C charging.
UL tested, FCC, CE, RoHS, UN38.3 Certified.
Recommend Dyness14.6V 20A charger for battery and Bluetooth activation.
Do NOT use it as a Starter Battery.
Please do not orient the battery with top or rear side downward. Other orientations are permissible.
Product Specifications
| Cell Type： | LiFePO4 Prismatic |
| Warranty： | 5 Years |
| Cycle Life： | 4000 cycles at 100% DOD |
| Nominal Voltage： | 12.8V |
| Rated Capacity： | 100Ah |
| Energy： | 1280Wh |
| Max. Expansion (Parallel & Series)： | 4P4S |
| Certifications： | UL, FCC, CE, ROHS, UN38.3 |
| Bluetooth： | √ |
| BMS： | 100A |
| Max. Continuous Output Power： | 1280W |
| Max. Continuous Charge Current： | 100A |
| Max. Continuous Discharge Current： | 100A |
| Charge Method： | CC/CV |
| Charge Voltage： | 14.4V ± 0.2V |
| Discharge Temperature： | -20℃ to 60℃ / -4℉ to 140℉ |
| Low-Temperature Protection： | √ |
| Protection Class： | IP65 |
| Weight Approx.： | 25.3lbs |
| Size： | 12.99" x 6.77" x 8.43" |
Faqs
How do I monitor the battery status?
Smart Battery with Built-in Bluetooth
The Group 31 smart battery features integrated Bluetooth, allowing you to monitor real-time status directly from your smartphone—including SOC, voltage, current, capacity, and temperature. Simply download the Dyness Battery App, enable Bluetooth on your phone, and select your battery from the available devices. No extra hardware required.
What to do when receive the battery?
Please charge the Bluetooth battery first after receiving it. This will ensure that the battery can be turned on and the Bluetooth connection is established. (Our Bluetooth batteries are delivered in the off state, the virtual voltage of the battery terminal is 3V-5V, this is a normal phenomenon, just use the AC-DC charger or MPPT solar charge controller to charge the battery and turn on the battery, it can be used normally.)
Note: When charging the Bluetooth batteries for the first time, the power level may stay at 99% for several hours before reaching 100%.
If you intend to store the battery for an extended period without use, we recommend charging it to a SOC 50% and conducting maintenance every three months. These measures will help preserve its functionality and performance in the long run.
Does the Dyness Group 31 bluetooth battery has low-temperature protection?
Yes, this group 24 battery has low-temperature charging-off protection. It's recommend to charge the battery during the temperature range: 0℃ to 50℃ / 32℉ to 122℉.
Recommended reading on LiFePO4 Temperature Range Guide for more information on safe usage and performance.
For optimal performance, charge the battery indoors on cold days.
How many group 31 bluetooth batteries can I connect in sereis or parallel?
You can easily expand your power system using Dyness Group 31 batteries by connecting them in various configurations.
Series Connection: Connect up to 4 batteries to increase voltage to 51.2VV.
Parallel Connection: Connect up to 4 batteries to increase capacity to 400Ah.
Series-Parallel Connection: Build a larger bank of up to 16 batteries (for example, a 4-series and 4-parallel, or 4S4P, setup).
Important Rules for Connecting Batteries
For your system to operate safely and perform optimally, all connected batteries must meet the following criteria:
Same Specifications: They must have the identical capacity (Ah) and BMS (Battery Management System) current rating (A).
Same Brand: Only connect Dyness batteries with other Dyness batteries. Different brands often have incompatible BMS programming, which can lead to system failure.
Purchased Recently: All batteries should be purchased within a short timeframe (ideally one month) to ensure they are from a similar manufacturing batch and have balanced internal characteristics.
How to charge Dyness Group 31 Bluetooth lithium batteries?
1. Using Solar Panels
The battery can be fully charged in one day (with effective sunshine 4.5 hrs/day) by 400W solar panels. It may take more than one day to fully charge the battery by ≥400W solar panels since the duration and intensity of light would be a great factor for their charging efficiency.
2. Generator/Alternator
If the alternator or generator supports DC output, a DC-to-DC charger is needed to connect the battery to the generator; if your alternator or generator supports AC output, please add a suitable battery charger to connect the battery and the generator according to our recommendations. The Recommended Charging Voltage: 14.2V - 14.6V. The Recommended Charging Current:
① 20A (0.2C): the battery will be fully charged in around 5 hrs to 100% capacity;
② 50A (0.5C): the battery will be fully charged in around 2 hrs to around 97% capacity.
3. LiFePO4 Smart Chargers
To charge 12V battery, it is recommended to use 14.6V battery charger.
The Recommended Charging Voltage: 14.2V - 14.6V.
The Recommended Charging Current:
① 20A (0.2C): the battery will be fully charged in around 5 hrs to 100% capacity;
② 50A (0.5C): the battery will be fully charged in around 2 hrs to around 97% capacity.
Can the battery be mounted sideways?
Install the battery upright with post bolt facing up, and it could notbe mounted upside down. lf you need to mount the battery at its side. Please contact dynesssupport@dyness-tech.com to confirm the direction.
What are the Differences Between a Group 31 and Group 24 Battery?
The main difference between the Dyness Group 24 battery and the Group 31 battery lies in their physical size. Group 24 batteries are generally smaller than Group 31 batteries. In addition, Group 31 is not suitable for use with trolling motors.
For more details, please refer to the comparison between deep cycle Group 24 and Group 31 batteries.
