NUE SunCase 2025 User manual

SunCase
2025
USER GUIDE

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WHAT YOU NEED
SunCase
chargerUser manual

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WHAT YOU NEED GLOSSARY
The following terms are used in this document to indicate various levels of potential harm
that may be caused by improper operation.
NOTICE
The instructions, if not properly followed, may result in property damage and minor physical
damage.
WARNING
Read the ENTIRE user manual to familiarize yourself with the features of this product before
operating. Failure to operate the product correctly may result in damage to the product or
your personal property. It can cause serious injury as well. New Use Energy will not assume
any legal responsibility for any damages. DO NOT use the SunCase with incompatible
components or alter the SunCase in any way. Otherwise, you cannot get aer-sales service
from New Use Energy under our warranty. These Safety Guidelines include instructions
for operation and maintenance. It is important to read and follow all the instructions and
warnings in the user manual before setting up or using the product.

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PRODUCT SAFETY GUIDELINES PRODUCT SAFETY GUIDELINES
If instructions are not properly followed property damage and serious injury
may result. Be sure to use this product in accordance with the following safety
rules and guidelines.
Product use:
1. Do not expose SunCase to any liquid. Keep the SunCase away from rain or any liquid. Do not drop the
SunCase into the water. If the battery in the SunCase comes into contact with water, it may cause chemical
decomposition of the battery. This may cause the battery to catch re or explode.
2. Never use or charge swollen, leaky, or damaged batteries. If your SunCase is abnormal, contact New Use
Energy for further assistance.
3. Never install or remove a battery from the SunCase when it is turned on.
4. Never disassemble or pierce the product in any way. Otherwise, it may leak, catch on re, or explode.
5. DO NOT use the SunCase if it was involved in a crash or a heavy bump.
6. If the SunCase falls into water during use, take the SunCase out immediately and put it in a safe and open
area. Keep a safe distance from it until it is completely dry. Never use it again and dispose of it properly as
described in the disposal section below.
7. Do Not insert pins, wires or other metal pieces inside the device case, outlets or controls. Metal pieces may
short circuit the product.
8. Avoid collisions. DO NOT place heavy objects on the SunCase.
WARNING Product Charging using AC Input:
1. Always use the New Use Energy approved charger shipped with the unit. New Use Energy takes no
responsibility for any damage caused by using a dierent charger.
2. When charging, please place the SunCase on the ground with no ammable or combustible materials
around. To prevent accidents, never leave the machine unattended during charging.
3. DO NOT charge a SunCase immediately aer handling a very high energy load, because the product’s
temperature may be elevated due to the stress of said load. Wait until it cools down to room temperature.
DO NOT charge a SunCase if it is hot to the touch. The product is unsafe to charge when the internal
temperature is outside the range of 32 to 131 °F (0 to 55 °C). Do not recharge if its below 0 degrees Celsius
outside
4. If you are charging from a diesel generator, please follow all instructions and safety policies for that
generator and do so in a well-ventilated area outside.

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Product Storage and Transportation:
1. Keep the SunCase out of the reach of children.
2. If the low-battery indicator alarm goes o, charge the battery before storing it. Otherwise, long-term storage
may cause damage to the battery in the product. Batteries in the product will enter hibernation mode if
it is depleted and stored for a long time. Recharge the SunCase can bring the battery out of hibernation.
3. DO NOT place the SunCase near a heat source, such as a car in direct sunlight, a re source, or a heating
stove.
4. Store the product in dry environments. DO NOT place the SunCase where it may come into contact with
water.
5. Never ship a SunCase with a battery power level higher than 60%.
Battery Disposal:
1. Dispose the SunCase in specic recycling boxes only aer the batteries inside have been completely
discharged. Batteries are hazardous and have to be disposed of in the proper facility. Please strictly follow
your local regulations regarding the battery disposal and recycle.
2. Dispose of the SunCase immediately if it cannot be powered on aer over-discharging.
Product Maintenance:
1. Never store the product in environments between 14 to 113 °F (-10 to 45°C).
2. If the battery is continually not charged and le in storage, it’s battery life may be reduced.
3. Fully charge and discharge the battery at least once every three months to maintain battery health.
PRODUCT SAFETY GUIDELINES PRODUCT SAFETY GUIDELINES

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TABLE OF CONTENTS
SUNCASE USE CARE AND SAFETY GUIDE 7
FEATURES OF THE SUNCASE 8
LCD DISPLAY 10
CHARGING AND PARALLEL CAPACITY 11
TECHNICAL SPECIFICATIONS 13
PERFORMANCE CHARACTERISTICS 15
HOW TO RECHARGE 16
FAQS 16
SUNCASE CONTINUOUS USE 18
PRODUCT IMAGES 19

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SUNCASE USE CARE AND SAFETY GUIDE
Turning the unit on and o:
To turn the SunCase o, you must ip the green breaker into the on position (where it will ash red”. This will
activate the battery to the system. You must ip this breaker into the on position to charge the unit or turn the
DC or AC outlets on for use. To turn the AC outlets on, ip the red switch to activate the interver. This will allow
AC power through the units. To turn the SunCase o, rst ip the AC switch into the o position. Then unplug
any AC or solar input. Then ip the green breaker into the o position.
Open or close various output operation methods:
1. When you need to use the SunCase, please ip the battery DC power switch.
2. Aer the DC switch is turned on, the USB-A, USB-C, Type-C, and the cigarette lighter interface are all
functional.
3. The LCD screen should be on aer completing the previous two steps; therefore you should have AC power.
UPCOMING SECTIONS
Battery Maintenance
Get to know the SunCase so that you can get the best performance from it. Follow this step-by-step introduction
to each of battery ports, buttons, display screens and more.
Technical Specications
Get to know the specications of the SunCase.
How to Charge
Everything you need to know about recharging the battery via AC charger or from solar power.
FAQs
Answers to some of the most important questions you have about how to take care, store, and safely use the
SunCase.

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1. DC Switch
The SunCase can be turned on or o via a power switch.
2. LCD Display
Can display the battery voltage, remaining power, output power, AC voltage, HZ and other icons.
3. AC Switch
The AC output can be turned on or o by ipping the AC switch.
4. AC Output Port (110V Model)
AC110V 60HZ, charging devices that can charge devices using chargers, such as laptops, TVS, mini-refrigerators,
vacuuming, etc. 220V markets will have appropriate AC220V 50HZ outlets.
FEATURES OF THE SUNCASE
5
11
6
7
2
8
9
3
4

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5. Solar Charge Port
The PV port supports 30-55V (100-600W) of solar input, with a maximum of 20A of current.
6. DC Input and Output port
The output voltage specication of the charger is DC 28.4-29.2V with a max of 50A of current.
7. Parallel Connect Port
The parallel connect port supports the maximum 2 sets of SunCase parallel. The port also supports DC 29.2V
input charging and DC24V output discharge. It attaches to any red 50Amp Anderson connector.
8. Type-C Output
Type-C port supports 5-12V output and 18W power. Devices that can be charged include phones and tablets.
9. USB-A Output
The USB port supports up to 5V/12W of power. Devices that can be charged include phones and tablets.
10.12V Power Output
The cigar Llghter connection supports 12-13V and 10A of output. Any 12V DC appliances, such as lamps and
refrigerators are supported. Please make sure devices are designed for DC charging before attempting to
charge them via DC power.
11.Ventilation Fans
The fans prevent the battery from overheating.
FEATURES OF THE SUNCASE

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A. Battery Level Display
The battery display has 8 bars, each representing 12.5% SOC. When the display has 1 bar remaining, the
remaining battery capacity is < 12.5%. When this is the case, please charge battery immediately. Note: The
corresponding SOC of the power display will vary according to the dierent load power size.
Please note
This portion of the display is connected only to the inverter and may not be accurate. We recommend
downloading and using the Grenergy App and the voltage readings for maximum accuracy.
B. Battery Voltage Display
Displays the current voltage value of the battery.
C. AC Cycle
Displays the frequency of the AC current.
D. AC Voltage
Displays the voltage of the AC output current.
E. AC Output Power
Displays the current of the output coming from the AC outlets.
LCD DISPLAY
BC D
EA

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How to recharge the SunCase with charger or solar panels
If you need to know more about the connection of a single panel to the unit, please refer to the solar panel’s
corresponding spec document or user manual. The charge controller supports a 30-55V DC input. Please only
use the SunCase with panels that are wired correctly to output within this voltage. The SunCase’s over-voltage
protection is triggered when the input is over 55V as voltage exceeding this amount may damage the product.
The user shall follow all the instructions in the manual. New Use Energy do not provide free repair services
for any product damage caused by connecting too many solar panels to the product or connecting them
incorrectly even during the warranty period. As shown in the picture below, the user can connect 1 solar panel
(no more than 500W) to the 50A blue Anderson interface of the SunCase to charge the SunCase.
CHARGING AND PARALLEL CAPACITY

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CHARGING AND PARALLEL CAPACITY
As shown in the picture below, users can connect the AC charger (DC29.2V 50A
Max) to the 50A gray Anderson SunCase charging port on the side.
As shown in the gure below, the user can connect 2 SunCase in parallel
to increase the battery capacity and prolong the load time.
How to connect two SunCases in parallel?
If you need to increase the battery capacity of the unit, connect 2 SunCases of the same type in parallel, the
capacity will be doubled aer parallel connection. This can signicantly prolong the runtime of the unit.

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Capacity 2560Wh, 100Ah
Nominal Voltage 25.6V
Certications UL, CE (cells), UN, CE, FCC, RoHS
AC Output (x2) 2000W (Surge 4000W)
QZ 3.0 Output (x4) 5V 3A, 9V 2A, 12V 1.5A, 18W Max
Type-C Output(x4) 5V 3A, 9V 2A, 12V 1.5A, 18W Max
Car Port Output(x1) 12-13V, 10A,120WMax
AC Charging Input Voltage 100-120Vac 50/60Hz (US Model)
AC Charging Input Power Max 29.2V 50A
AC Charger Included 880W@ 29.2VDC External Charger
Balancing Voltage -4-140°F (-20-55°C)
Recommended Charge Current 20 A
Maximum Charge Current 100 A
Recommended Charge Voltage 28.4 V – 29.2 V
BMS Charge Voltage Cut-O 30 V (3.75 ±0.025 vpc)(1.2 s±0.3 s)
Reconnect Voltage 28.8 V (3.6 ±0.05 vpc)
Balancing Voltage 27.2 V (3.4 ±0.025 vpc)
PV Input 30-55V 20A Max, 100-600W
Battery Cell Type Lithium Iron Phosphate (LiFePO4)
Battery Cell Capacity 3.2V 100Ah
Discharge Temp. Range -4-140°F (-20-55°C)
Charging Temp. Range 32-122°F (0-50°C)
Storage Temp 14 to 113 °F (-10 to 45°C)
BMS High Temperature Cut-O 167 °F (75 oC)
Reconnect Temperature 149°F (65 oC)
TECHNICAL SPECIFICATIONS

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Expected Cycle Life 80% Draw 3,500 Cycles
Environmental Relative Humidity 5-75% battery (5-95% Inverter)
Capacity @20Amp 300 min
Resistance ≤30 mΩ @50% SOC
Eiciency 99%
Self Discharge <3% per Month
Maximum Continuous Discharge 100 A
Peak Discharge Current 120 A (10 s)
BMS Discharge Current Cut-O 300 A (310ms)
Low Voltage Disconnect 21.6 V
BMS Discharge Voltage Cut-O 20 V (2.5 ±0.08 vpc) (140 ±60 ms)
Reconnect Voltage 21.6V (2.7 ±0.1 vpc)
Short Circuit Protection 200-600 μs
Breaker Amperage 80Amps
Weight 78 lb (35kg)
Net Lithium Weight (NW) 12.1 LBS (5.5kg)
Dimensions (LxWxH): 22x17x10 (570x440x256mm)
Terminal Type Anderson
Case Material ABS
Enclosure Protection I P30
Warranty 2-Year Limited Manufacturer’s
TECHNICAL SPECIFICATIONS

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PERFORMANCE CHARACTERISTICS

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HOW TO RECHARGE
How to charge the battery
The SunCase has a charger or PV input port. The SunCase can be charged with an AC charger or solar panels.
Can the SunCase power other devices when charging?
When charging the SunCase, the AC output will be simultaneously charged. Assuming no overcharging, USB-A,
Type-C, DC12V and Car Port output ports can be used.
FAQS
How to maintain the SunCase?
If you need to clean the SunCase, please use a dry cloth or slightly moist to clean the surface. Clean the SunCase
with detergent designed for your phone or computer screen. Don’t rinse or soak the unit in water!
How to store the SunCase?
1. Make sure that you charge the SunCase to around 85% capacity.
2. Store your SunCase in a dry environment without anything abrasive near it. For optimal battery health,
store the SunCase at room temperature of 77°F (25°C).
3. Charge the unit to 85% capacity every 3 months. This helps extend battery life and ensures that your
SunCase is always ready for use.
How to use the SunCase safely?
1. Please use it within the operating temperature range of the SunCase. Using the SunCase outside of the
optimum operating temperature range will push the machine beyond its safe and eective limits. Do not
immerse the SunCase in water. It’s not waterproof. Exposing the unit to water will void your warranty.
2. For your safety, do not charge the SunCase immediately aer it is fully discharged.
3. If you try to charge the SunCase immediately aer it is fully discharged, the SunCase will overheat
protection. Please wait 2 to 3 hours for the unit to cool down before charging.

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How do I access the Device’s Bluetooth App?
1. Visit the App store on your Iphone or Samsung device.
2. Search for “BAT-BMS”.
3. Download the app of that name in the “Utilities” category. Remember to
give the app access to your Bluetooth and accessories.
4. Open the app. If your SunCase is nearby, it will appear as a device in the
list. If there are multiple SunCases or NUE brand PowerPacs nearby,
multiple devices will show up. Please use the serial number (which should
be on a sticker on your SunCase) to identify the specic unit you would
like to monitor.
5. Connect to the device you would like to monitor.
6. Open that device on the app. You will be given multiple pages. To get accurate up-to-date information
check the RT page, which should have information direct from the BMS.
Do you have any advice on how to best use the Bluetooth App
for this device?
1. Remember that the capacity meter displayed on this app is the most accurate meter as it is from the
device’s BMS. NUE recommends using it whenever possible.
2. On the Control page you can toggle the charging and discharging switch remotely as well. Please do not
touch the AutoBalance or Heating State portions for this device.
3. Please do not touch the Parameter settings, so as to ensure the safest use of this unit within the preset
parameters.
FAQS

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SUNCASE CONTINUOUS USE
Cell Phone Power Tool Charger/
Led Bulb/Router/Cpap Machine
Desktop Computer/
Large Fridge
Ventilator/
Patient Monitor
35L per Minute Water Pump/
5,000 BTU Window Air Conditioner
Starlink System/LED TV/Pellet
Cooker/Small Fridge
Toaster Oven/Chain Saw/
Disc Saw
Operating hours:
Over 100++ Hours
Endless with Solar
Operating hours:
5 Hours
Endless with Solar
Operating hours:
35 Hours
Endless with Solar
Operating hours:
Up to 5 Hours
Operating hours:
18 Hours
Endless with Solar
Operating hours:
Up to 9 Hours
NOTE: Actual appliance specs will vary based on make and model. Watts indicated are for steady-state
operation. Some appliances have a brief initial surge upon starting but SunCases are capable of handling this
surge. Operating times are based on 85% of stated battery capacity.

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PRODUCT IMAGES

1. Keep the SunCase and its accessories dry. Do not expose them to high temperatures.
2. Never disassemble, puncture, shock, crash, or incinerate the product or its
accessories.
3. Recycle and dispose of the product in accordance with local regulations.
4. Pay attention to safety when handling the SunCase.
5. People with disabilities or children should use the machine under the protection
of a supervisor.