Installers

Installers need batteries that fit the system, arrive as specified and don’t generate callbacks. LJY Energy’s LiFePO₄ batteries come in standard 12V, 24V and 48V-class configurations for solar and off-grid system designs; inverter compatibility is confirmed per project against the inverter model and BMS rating.

Compatibility is confirmed per inverter model and firmware, because the battery–inverter link depends on the protocol profile, cable pinout and BMS settings. LJY Energy does not publish a list of compatible inverters; step 3 of the installer path below shows what is checked and how to test a sample.

Built for Installation Work

  • System compatibility — Standard 12V, 24V and 48V-class voltages; fit with your inverter or charge controller is confirmed per project against its model and BMS rating.
  • Clear technical specifications — Know exactly what you’re installing; detailed specifications provided for each model. Browse products →
  • Application coverage — Solar energy storage, RV, marine, backup power and off-grid systems. View solutions →
  • Project configuration — Need a specific setup for a job? We configure batteries to project requirements. OEM & ODM options →

Installer path: from system design to inquiry

Storage jobs usually go wrong in one of three places: the battery does not communicate with the inverter, the format does not fit the site, or the destination market asks for documents nobody planned. The steps below follow the order in which installers decide, and each step links to the page that answers it.

  1. Choose the starting size. The entry capacity is 51.2V (48V class) 100Ah, 16S, which is 51.2V × 100Ah = 5,120Wh: 51.2V 100Ah LiFePO4 battery. Upsizes have their own pages: 200Ah (10,240Wh), 280Ah (14,336Wh) and the 314Ah floor-standing cabinet (16,076.8Wh). The 51.2V rack series page compares the ladder.
  2. Choose the format. Wall-mounted 100Ah, outdoor IP65-class wall-mounted, rack-mount, stackable home storage: all of these are low-voltage 51.2V (48V class) batteries for 48V-class inverters. High-voltage projects are a separate series, the high-voltage stackable module (modules in series, stacks of 204.8V and up), which needs an HV inverter and cannot be connected to a 48V-class inverter.
  3. Confirm the inverter link before you quote. Read the closed-loop inverter communication guide and run your numbers through the inverter battery compatibility calculator. If a large inverter trips the battery at connection, see our inverter pre-charge guide.
  4. Size the system. Use the solar battery sizing calculator; the configuration guide by application shows what is standard and what you can choose.
  5. Agree warranty and after-sales terms. The warranty terms guide lists the clauses to settle before the first order.
  6. Check the destination rules. See the import guides below, then send the inquiry.

51.2V (48V class) at a glance for installers

Model-defining values are arithmetic from voltage and capacity, not lab-measured results. Everything marked as confirmed per project is settled in the quotation for your format and inverter. Choosing between a 48V-class and a high-voltage system? See our high-voltage vs low-voltage storage guide.

GroupParameterValueStatus
ElectricalVoltage class and cells51.2V (48V class), 16S LiFePO4[Industry reference]
ElectricalEnergy by capacity (51.2V × Ah)100Ah = 5,120Wh · 200Ah = 10,240Wh · 280Ah = 14,336Wh · 314Ah = 16,076.8Wh[Industry reference] — arithmetic
ElectricalAlternative voltage classA 15S 48.0V configuration (4.8kWh at 100Ah) is listed as an ODM option on the wall-mounted 100Ah page[Optional configuration]
ElectricalContinuous and peak current, cut-off voltagesDepend on the BMS option and the format[Confirmed per project]
FormatMounting formats that have a pageLow-voltage 51.2V formats: wall-mounted · outdoor IP65-class wall-mounted · rack · stackable (parallel) · floor-standing cabinet. High-voltage stackable modules are a separate series (stack voltage 204.8V and up) with their own page[Optional configuration]
FormatDimensions, weight, IP rating, terminalsDiffer by format and are set per project[Confirmed per project]
CommunicationInverter linkCAN or RS485; protocol profile, cable pinout and address method set per inverter model and firmware[Optional configuration] · [Confirmed per project]
CommunicationCompatible-inverter listNone published. Compatibility is stated only for a combination that has a test record[Confirmed per project]
ParallelBatteries per systemNo fixed maximum is published; the limit depends on the BMS and the inverter[Confirmed per project]
ThermalSelf-heating for cold sitesAvailable on request[Optional configuration]
DocumentsCertificates and test documentsFor the exact model and destination market; UN38.3 and MSDS documents coordinated per order[Confirmed per project]
CommercialPrice, MOQ, lead time, stock, warrantyStated in the quotation[Confirmed per project]

What to confirm before you order

  • Inverter brand, model and firmware version, and the lithium battery profile you will select on it.
  • Inverter communication port type (RJ45 or terminal block; CAN or RS485).
  • Number of batteries in parallel now, and whether the system will be expanded later.
  • Installation type and climate: indoor wall, outdoor wall (IP65-class), rack or floor cabinet; minimum and maximum ambient temperature (decides whether self-heating is needed).
  • Voltage class: low-voltage 51.2V in parallel, or a high-voltage stack (stack voltage comes from the module count, for example 4 modules = 204.8V, and is matched to the HV control box and the inverter voltage window per project).
  • Destination country and the documents your customs broker will ask for.
  • Logo, colour and label needs. Appearance, color and logo customizable per customer request.

Installer document pack & compatibility record

For each project we assemble a document pack for the exact battery model, BMS option and the inverter you name. Which documents exist for a given model, who issued them and which revision applies are confirmed in writing before you order — not assumed from a catalogue page. LJY Energy does not publish a fixed list of compatible inverter brands; fit is checked per inverter make, model and firmware.

DocumentWhat it coversHow it is handled
Datasheet (model and revision)Nominal voltage / series count, capacity and energy, charge and discharge limits, BMS continuous and peak current for the quoted option, temperature window, dimensions, weight, IP rating, terminals and communication ports.Issued for the configuration in your quotation.
SDS / MSDS and UN38.3 test summaryChemistry, hazard and transport information; UN Manual 38.3.5 elements (lab, report number, model, Wh, pass/fail). A general “complies with UN38.3” line is not a test summary.Coordinated per order for the shipped model. Ask for the report holder and model scope before you order.
BMS protocol / wiring / alarm listPort type, CAN or RS485, baud, protocol profile name, pinout, parallel addressing, BMS firmware; DC cable and fuse guidance; BMS alarm codes and reset actions.Written for the inverter model and firmware you name. Revised if BMS firmware changes between sample and production.
Compatibility recordExact battery + inverter combination checked, settings used, and result (pass / pass with restrictions / fail).Created per project. We do not claim a place on any inverter maker’s approved battery list unless that exact model is listed by the inverter maker.
Market certificates (e.g. IEC 62619, UL 1973, CE — as applicable)Certificate or report number, issuing body, model scope and date for your AHJ or customs broker to verify.Certification support is arranged per project; testing fees are borne by the buyer. Scope is confirm-at-inquiry, not assumed from this page.

For the documents a permit or install usually needs, see our home battery permit pack guide.

What we need from you (ask at inquiry)

  • Inverter brand, model and firmware version, and the battery profile you plan to select.
  • Low-voltage 51.2V class (batteries in parallel) or high-voltage stack; pack count now and planned expansion.
  • Format and site: indoor or outdoor, ambient temperature range.
  • Destination country and documents your customs broker or authority asks for.

Warranty terms to settle in the quotation

Ask in writing per project: warranty period and start date, retained-capacity threshold, throughput limit (MWh), exclusions, logs needed for a claim, who decides the claim, who pays freight and labour, and the remedy. All of these are confirmed in the quotation — see the warranty terms guide.

Compatibility calculator · Inverter communication guide · 51.2V 200Ah · Request installer project quote

Compatibility record template

One record per battery and inverter combination. If the inverter firmware, the BMS firmware or the cable changes, add a new row instead of editing the old one. Copy the table into your project file; we fill it in with you during the sample or first-installation check.

FieldExample of what to writeYour entry
Record ID and dateCR-[project]-01, test date YYYY-MM-DD 
Battery model and revisionModel code from the quotation, hardware revision 
BMS firmware versionAs read from the BMS software or label 
Inverter brand and modelBrand + full model string from the nameplate 
Inverter firmware versionMain / DSP / communication board versions, if shown 
Voltage classLV 51.2V (48V class) or HV stack voltage 
Protocol and portCAN or RS485, baud rate, protocol profile name, port on battery and inverter 
Cable and pinoutPin assignment at each end, cable part number or drawing 
Inverter settings usedBattery type selected, charge voltage, charge and discharge current limits, low-SOC / cut-off settings 
Parallel configurationNumber of batteries, master/slave address method 
Checks performedCommunication established, SOC shown on inverter, charge and discharge under load, alarm passed to inverter 
ResultPass / pass with restrictions / fail 
Known restrictionsFor example “closed-loop only with profile X”, “max N batteries tested” 
Checked byName and company of the person who ran the check (installer, integrator or test lab) 

A record covers only the combination and versions written in it. A firmware update on either side can change battery support, so re-check after updates. Inverter makers publish their own battery lists with the model, protocol and setup code, for example Victron battery compatibility; those lists, not this record, decide whether a battery is approved by that inverter maker.

Request a compatibility check · Inverter communication guide · WhatsApp +86 159 8945 0735 · Contact form

Import rules by destination

These guides describe the official requirements and the questions to put to your customs broker. The Africa guide labels each country row verified, partly verified or not verified, with a date. None of the guides is a statement that LJY Energy holds any certificate.

For a first estimate of duties and freight, use the battery landed cost calculator.

Repeat projects and your own brand

Installers who deploy the same system again need the same confirmed specification on every order. The wholesale and distributor program explains how repeat supply is handled, and the OEM and ODM options linked above list what you can choose, such as protocol profile, logo and packaging. How specifications are confirmed and checked is described on the About Us page.

New to the Battery Business? Start Small. Grow Together.

Adding battery storage to your installation work for the first time? We welcome inquiries from first-time battery resellers and growing businesses. Sample and small-batch sourcing options depend on the product, configuration, and supplier availability.

Send an installer inquiry

Include as many of these as you have; approximate figures are fine.

  • Inverter brand, model, firmware and communication port
  • Target capacity and number of batteries per system
  • Format and site (indoor or outdoor, climate)
  • Destination country and expected annual volume per SKU
  • Branding needs

Start from the format you need: 51.2V 100Ah wall-mounted · outdoor IP65-class wall-mounted · high-voltage (HV) stackable module, not 48V class · 314Ah floor-standing cabinet · inverter communication question. Browse everything in the product catalog, or see the solar energy storage and home energy storage application pages.

WhatsApp: +86 159 8945 0735. Email: jack@ljyenergy.com. You can also use the contact form.

The WhatsApp and email links open a short message that already names this page and asks for company type, inverter brand/model/firmware, battery model, quantity, destination country and business stage. Fill in what you know and leave the rest.