ANMA System Building

Identity

category	batteries
ean	UNKNOWN
generation	UNKNOWN
manufacturer	EG4
market_version	US
model	WallMount Indoor 280Ah (14.3 kWh)
mpn	WM-48\|280-LL-00; WM-48-280-1-IN-LL-00; WM-48-280-IN-LL-00
product_family	EG4 WallMount battery family (Indoor 100Ah / Indoor 280Ah / 314Ah / All Weather)
product_revision	UNKNOWN
product_status	active
region	NA (US)
release_year	UNKNOWN
sku	UNKNOWN

Electrical

bms_architecture	{'type': 'master/slave; master address 1, slaves ascending; address 64 (all DIP ON) enters protocol-selection mode', 'separate_master_bmu_required': False, 'modules_per_stack': '3-5 depending on inverter count (see max_parallel_units)', 'max_parallel_groups': 'UNKNOWN'}
chemistry	LFP (LiFePO4)
communication_can	True
communication_rs485	True
firmware_requirements	UNKNOWN
max_continuous_charge_current_a	140 EG4 WallMount Indoor 280Ah - Lithium Battery Specifications Sheet — spec sheet, 'Max Continuous Charge Current 140A'
max_continuous_discharge_current_a	140
max_continuous_power_kw	UNKNOWN (not printed as a kW figure)
max_parallel_units	3 on a single inverter; 4 across 2 inverters; 5 across 3 inverters; larger systems via an external fused positive busbar (200 A minimum per battery, 250 A max fuse each) EG4 Indoor 280Ah Battery Quick Start Guide — quick-start guide p.9-10
max_series_units	N/A (single 51.2 V module; series not permitted)
min_series_units_hv	N/A
nominal_energy_kwh	14.3
nominal_voltage_v	51.2
officially_supported_inverter_brands	['EG4', 'Schneider', 'Sol-Ark', 'Victron', 'Growatt', 'Megarevo', 'Luxpower', 'Deye', 'SMA']
officially_supported_inverter_models	['EG4 18kPV', 'EG4 6000XP']
peak_current_a	200 for 30 minutes EG4 WallMount Indoor 280Ah - Lithium Battery Specifications Sheet — spec sheet, '200A for 30 min'
supported_inverter_protocols	['CAN protocol codes: P01 EG4/Lux; P02 Growatt; P03 Sol-Ark; P04 Deye; P05 Megarevo; P06 Victron; P07 Luxpower; P08 SMA', 'RS485 protocol codes: P01-EG4; P02-GRW (Growatt); P03-SCH (Schneider)', '18kPV / 6000XP require CAN protocol selection P01-EG4/LUX', 'Protocol change mode entered by setting battery address 64 (all DIP switches ON)', "Spec sheet states 'RS485/CAN Can be customized'"] EG4 Indoor 280Ah Battery Quick Start Guide — quick-start guide sections 11.1/11.2 protocol tables (p.26-28)
usable_energy_kwh	UNKNOWN (not stated; spec sheet quotes '14.3kWh @25C, 100% SOC' and recommends 80% DoD)
voltage_class	LV
voltage_range_v	44.8-60.0 (module protection limits)

Physical / mechanical

cable_entry_positions	UNKNOWN
depth_mm	264
enclosure_material	UNKNOWN
height_mm	865
housing_color	UNKNOWN
mounting_bolt_size	expansion bolts included for concrete/brick walls; 4 side screws fix the battery to the bracket
mounting_hole_diameter_mm	9.5 (3/8 in. drill bit for the bracket holes)
mounting_type	['wall']
rack_units	N/A (wall-mount enclosure)
shipping_weight_kg	UNKNOWN
terminal_locations	600 A internal busbars with 4 positive and 4 negative terminals; M6 grounding screw on top
torque_specs	UNKNOWN (quick-start guide defers to inverter documentation)
weight_kg	130
width_mm	460 EG4 WallMount Indoor 280Ah - Lithium Battery Specifications Sheet — spec sheet, '34.1 in x 18.1 in x 10.4 in (865 mm x 460 mm x 264 mm)'

Installation

clearance_bottom_mm	742 EG4 Indoor 280Ah Battery Quick Start Guide — quick-start guide p.15-16, 'minimum clearance from the ground of 29.2 in. (742mm)'
clearance_left_mm	170
clearance_right_mm	170
commissioning_note	all batteries must be charged individually to 100% before paralleling
indoor_outdoor	indoor (IP20)
max_installation_altitude_m	5000
mounting_orientation	wall-mounted, vertical
surface_requirements	concrete/brick wall with supplied expansion bolts
two_person_lift_required	UNKNOWN (130 kg unit)

Environment

charge_temperature_c	0 to +50 (32 F to 122 F)
cooling_method	natural convection
discharge_temperature_c	-20 to +55 (-4 F to 131 F)
ip_rating	IP20
max_altitude_m	5000
relative_humidity	UNKNOWN
storage_temperature_c	0 to +45 (32 F to 113 F)

Interfaces & connectors

battery_terminal_type	proprietary click-lock connectors; supplied 2/0 AWG cables (39.4 in.), 2 red + 2 black sets
can	yes - RJ45; 18kPV wiring pins 4-H / 5-L
protocol_notes	Closed-loop over CAT5/5e/6. Master battery address 1, slaves ascending. Default password 123456.
rs485	yes - RJ45; 18kPV wiring: inverter pins 7-A / 8-B, battery pins 1-B / 2-A

Protection

cell_balancing	UNKNOWN
fire_measures	dual on-board fire arrestors
integrated_breakers_fuses	200 A BMS cut-off ('The battery can charge/discharge up to 200A before the BMS shuts off the pack'); external busbar fusing 200-250 A per battery for large arrays
over_current	two-stage over-charging current protection
over_temperature	cell temperature and PCB temperature protection
over_voltage	cell voltage and module voltage protection
short_circuit	yes
under_voltage	cell voltage and module voltage protection

Certifications

emc	[]
note	Spec sheet prints only 'UL1973, UL 9540A'. No UN38.3/CE identifier appears.
other	[]
regional	[]
safety	['UL 1973', 'UL 9540A']
transport	[]

Warranty & service

conditions	registration at eg4electronics.com/warranty/
cycle_life	>8000 cycles at 0.5C, 80% DOD
design_life_years	>10
lifetime_throughput	82.6 MWh
standard_years	10

Packaging & logistics

gross_weight_kg	UNKNOWN
transport_restrictions	UNKNOWN (not addressed in the spec sheet or quick-start guide)

Documents

datasheet EG4 WallMount Indoor 280Ah - Lithium Battery Specifications Sheet rev UNKNOWN

datasheet EG4 WallMount Indoor 280Ah Lithium Battery product page rev UNKNOWN

quick-start EG4 Indoor 280Ah Battery Quick Start Guide rev UNKNOWN

Additional documented parameters

Recorded verbatim from the source; no schema field exists for these yet.

Fire arrestors	Dual on-board fire arrestors
Grounding warning	DO NOT GROUND THE NEGATIVE BATTERY CABLE!
Lifetime Production	82.6MWh
Self consumption	<25mA operating; <300uA sleep/standby

EG4 WallMount Indoor 280Ah (14.3 kWh)