Dr Prepare DBT12100LFP-S48SC-G2-US LiFePO4 Lithium Deep Cycle Battery User Guide

Dr Prepare DBT12100LFP-S48SC-G2-US LiFePO4 Lithium Deep Cycle Battery

IMPORTANT SAFETY INSTRUCTIONS

• Please read through all the labels on the battery and this user guide before the first use.
• When connecting batteries in series or parallel, read all the precautions about how to connect first, or you may damage the batteries.
• Keep the battery away from rain, splashes, and any wet locations.
• DO NOT short circuit the battery.
• DO NOT reverse polarity connection.
• DO NOT expose the battery to fire, heat sources, or direct sunlight.
• DO NOT dismantle or modify the battery yourself.
• DO NOT drop, crush, shake, strike, or penetrate the battery.
• Please use the specified charger to charge batteries.
• Our batteries are assembled using 8 screws and waterproof glue. If you want to disassemble the batteries yourself, please ask the customer service team for directions on how to disassemble the batteries. But keep in mind that once the battery is disassembled, it cannot be restored to its original state of being.

SPECIFICATIONS

General

• Battery type Lithium iron phosphate (LiFePO4)
• Rated capacity 100Ah (1280Wh)
• Rated voltage 12.8V
• Max. charging voltage 14.6V
• Max. discharging current 100A
• Max. charging current 50A
• Cycle lifespan More than 3000 cycles at 80% DOD
• Charging temperature range 32F~113 °F / 0 °C~45 °C
• Discharging temperature range 14 F~140 °F / -10 °C~60 °C
• Low-temperature protection
  • Charging: 23 °F~41 °F/ 0 °C±5 °C
  • Discharging: -13F~5F / -20 °C±5 °C
• High-temperature protection
  • Charging: 140 °F~158F / 65 °C±5 °C
  • Discharging: 158 °F~176F / 75 °C±5 °C
• Storage-temperature range
  • -4 °F ~113 F / -20 °C~45 °C (Store for 1-3 months)
  • -4 °F ~68 F / -20 °C~20 °C(Store for 1 year)

Controller Setting ( for reference )

• System voltage 12V (x N)*
• Boost charge voltage 14.2V (x N)*
• Over-discharge recover voltage 12.6V (x N)*
• Over-discharge voltage 11.1V (x N)*

Dimension and Weight

• Size (L x H x W) 13.07 x 8.66 x 6. 77 inches Size (L x H x W) 332 x 220 x 172 mm Compatible with the Group 31 lead-acid battery case
• Net weight 25.11 lbs / 11.39 kg

Note:
(x N): When it comes to a 24V(N=2) or 48V(N=4) system, the voltage should multiply by the number of series batteries.
*When the battery is fully discharged at a continuous 1 00A, it cannot be recharged at 50A immediately, which will trigger high-temperature charging protection.

TIPS FOR BETTER PERFORMANCE

How to Connect Battery

1. Please make sure all batteries that are connected meet the following criteria:

   • Batteries have the Same Capacity (Ah) and are the Same Type (Lithium iron phosphate (LiFePO4)).
   • As the built-in battery management system (BMS) may vary between brands, we advise you to choose batteries from the Same Brand for connection.

2. For optimal performance, we kindly advise you to follow the requirements listed below:

   • Fully charge all ready-to-connect batteries.
   • All battery interconnect cables should be the same wire gauge (AWG) and length, and come from the same brand. Otherwise, the impedance will be inconsistent, resulting in unbalanced charge and discharge perfor­mance.
   • Connect your batteries one by one in series (up to 4 batteries) or in paral­lel (up to 4 batteries). Secure all cable connections between the cable lugs and terminals.

3. When determining the cable size (AWG) for your system, there are two factors to consider:

   • The size of the electrical load you want to power.

   • The distance between the electrical load and your batteries.
     For reference, see the following chart:

   • Cables for Controller to Battery
     Solar Input Current| SA| 10A| 20A| 30A| 40A| 60A
     ---|---|---|---|---|---|---
     Wire Cross Section Area (mm2)| 1.5| 2.5| 5| 8| 10| 12
     WireAWG| 15| 13| 10| 8| 7| 6

   • Cables for Inverter to Battery
     Cable Size| Copper Conductor Diameter (inches)| Maximum Amperage
     ---|---|---
     6AWG| 0.20| 115
     4AWG| 0.23| 150
     2AWG| 0.30| 205
     1/0AWG| 0.37| 285
     2/0AWG| 0.43| 325
     4/0AWG| 0.56| 440

About Rated Power

• The max. rated power of this battery is 1280W.
• When connecting 2 batteries in parallel, the theoretical max. power is 1280W x 2 = 2560W. But this does not mean this battery bank can support all 2000W home appliances working normally via a 2000W inverter.
• The peak power of an AC motor appliance, such as an AC air conditioner or water pump, is double its rated power. For example, when using a 1500W AC air conditioner or water pump, it requires 2 x 1500W = 3000W of the battery bank and inverter to support normal working conditions.
• But please note that the peak power of some home appliances is 3 times the rated power. So you can consult the manufacturer for accurate peak power data.

How to Store Battery

• To store your battery, keep it at least 30%-50% charged. We recommend that you charge the battery every 6 months when not in use to prevent overdischarge.

DISCHARGE CURVE AT DIFFERENT TEMPERATURES (0.SC)

CHARGING PERFORMANCE (0.SC, 77°F/25°C)

CYCLE LIFE VERSUS DEPTH OF DISCHARGE (0.SC, 77°F/25°C)

MONITOR SCREEN

• The measurement accuracy is approx. 100mV.
  Note: Please turn off all connected electrical appliances to ensure there is no high power output before checking the current battery capacity.
  The reason is that the battery capacity displayed on the screen is measured in real-time voltage. Normally, the battery voltage will instantly drop when an inverter or other heavy load is operating on the circuit. Accordingly, the remaining battery capaci­ty, indicated by how many bars are left, will also fall.

WARRANTY

• Dr.Prepare LiFeP04 batteries are covered by a 5-year limited warranty from the original purchase date. If you encounter any issues during usage, feel free to contact us at support@drprepare.com
• We only provide after-sales service for products sold by Dr.Prepare or retailers and distributors authorized by Dr.Prepare. If you have purchased your unit through other channels, please contact your seller for more information about the return and warranty.

SUPPORT INFORMATION

Need help? Feel free to send us an email at support@drprepare.com Want to see more products? Visit the website drprepare.com.

This user manual offers a brief walkthrough of the unit’s features. Please keep the user manual in hand for future reference.
Still need help? Feel free to send us an email at support@drprepare.com

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