What Home Off-Grid Solar Storage Covers
Governments and international organizations (World Bank, ADB) are actively promoting off-grid solar to replace diesel generators with sustained subsidies. For system integrators and government procurers, the core challenges are: system lifespan (remote areas have extreme transport/maintenance costs), can users self-install (no electricians available), can products scale (projects often 10,000+ units). PLB home system: 5-15kWh + plug-and-play + 10-year life, 85%+ TCO reduction vs diesel, meeting large-volume delivery needs.
Professional Battery Solutions
5kWh " " " + "5kWh Daily — From "Just Lights" to "Fridge + TV Full Coverage"
Rural household needs: fridge 4.8kWh + lights + TV + charging ≈ 6kWh/day. Traditional lead-acid at 50% DOD (5kWh usable only 2.5kWh) — only enough for lights and charging. For fridge, need 10kWh system — but lead-acid 10kWh weighs 60kg+, bulky, expensive. Rural families can't afford or move it. Integrators stuck in this dilemma.
PLB LiFePO₄ 90% DOD (5kWh usable 4.5kWh) — 1.8× usable capacity vs same-size lead-acid. 5kWh PLB = 9kWh lead-acid usable, at 1/3 weight. Same coverage with dramatically reduced volume and weight, 60% lower shipping cost, 1-2 person installation.
| Basic solar kit | PLB home system | |
|---|---|---|
| Daily usable energy | Lights only | Fridge, TV and lights |
| Usable capacity | Half of rated | 90% of rated |
| Appliance coverage | Basic lighting | Whole-home backup |
| System sizing | Guesswork | Engineered to the load |
TCO 85%+10 Years No Replacement — 85%+ TCO Reduction
The pain is specific: TCO 85%+10 Years No Replacement — 85%+ TCO Reduction In daily operation, lead-acid or manually managed packs lose capacity between scheduled checks, maintenance teams cannot inspect every unit, and the failure surfaces only when the load is already at risk.
PLB LiFePO₄ designed for 10 years (4000–6000 cycles, 30% DOD), ≥70% capacity retention. PLB's LiFePO₄ pack and BMS monitor cell voltage, temperature and SOC continuously, alert before a weak cell becomes a failure, and are sized to the application's load profile.
| Conventional / manual | PLB LiFePO₄ | |
|---|---|---|
| Monitoring | Periodic checks | Continuous BMS |
| Fault warning | At failure | Threshold alerts |
| Maintenance | Scheduled visits | Exception-based |
| Service life | 2–3 years | 6,000+ cycles |
——0 Plug & Play — Zero Electrical Skills, User Self-Installation
Remote areas have no electricians (¥500–1,000 visit fee). Traditional systems need wiring + fuses + parameter tuning — complex. Integrators' biggest headache: users can't operate it, wrong wiring burns equipment, after-sales rate 15-20%. Each.
PLB home plug-and-play: MC4 connectors + anti-reverse + built-in MPPT auto-optimize. Zero skills, 1-2hr install. After-sales rate from industry 15-20% to <2%. Save ¥200–500 per unit in after-sales costs — 10,000-unit project saves ¥2–5 million. Video tutorials + remote guidance provided.
| Conventional | PLB plug & play | |
|---|---|---|
| Installation time | 4–8 h | 1–2 h |
| Skills required | Qualified electrician | None |
| After-sales rate | 15–20% | Below 2% |
| After-sales cost | ¥200–500 per system | Close to ¥0 |
Solution Advantages
High Depth of Discharge
90% DOD, 1.8× the usable energy
LiFePO₄ at 90% depth of discharge gives a 5kWh pack the usable energy of 9kWh of lead-acid, at one third of the weight and 60% less transport cost.
In-house cell lines · More appliances from the same capacity10-Year Life
4,000–6,000 cycles, 70%+ retention
A ten-year design life means one investment for the life of the system. Household TCO falls from ¥39,500 to ¥5,000 — an 87% reduction.
In-house long-life cells · Ten-year warrantyPlug & Play
MC4, reverse-polarity protection, automatic MPPT
MC4 connectors, reverse-polarity protection and automatic MPPT let a user complete the installation in one to two hours with no skills. After-sales falls below 2%, saving ¥2–5M across a 10,000-unit project.
Video guide and remote support · After-sales from 15% to below 2%Scale Delivery
Batch capability above 10,000 units
In-house production capacity supports 10,000-unit projects: standard models ship within 48 hours and custom builds within four to eight weeks.
ISO 9001 system · Export experience in 100+ countriesFrom Selection to After-Sales — PLB Stays With You
Four commitments that apply to every page in this category, from the first technical question to long-term support.
Technical Selection Support
Engineer recommends within 24 hours
Tell us the daily kilowatt-hour demand, peak load and site conditions — our engineers size the system and recommend the matching model within 24 hours.
Dedicated technical team · 24-hour response
OEM / ODM Customization
From cell to cabinet, fully customizable
From cells, BMS, housing and terminals to the nameplate, everything can be customized.
4–8 week customization · Tooling development supported
Global Shipping
Export to 100+ countries
Export-compliant packaging with UN 38.3 air transport certification and worldwide delivery.
UN 38.3 certified · MSDS available · Export compliant
Warranty & Support
Standard warranty, lifetime support
Standard products carry a full warranty, backed by lifetime technical support.
Warranty terms on request · Lifetime technical supportWhy Choose PLB?
Years of Manufacturing
Founded in Dongguan, China in 2014
Countries Served
Export-compliant packaging and worldwide delivery
Voltage Platforms
From 25.6V to 512V, built on the same cell platform
After-Sales Rate
Monitored by the internal quality traceability system
Full Range & Model Selection
Complete product range and model selection — plug-and-play home systems, modular community storage, telecom base-station cabinets and containerised relief systems.
| Model | Capacity | Form factor | DOD | Applications |
|---|---|---|---|---|
| LL-OG-HOME5 | 5 kWh | Wall / floor | 90% DOD, plug & play | Home essentials · fridge + TV |
| LL-OG-HOME10 | 10 kWh | Wall / floor | 10-year design life | Whole-home off-grid |
| LL-OG-COMM10 | 10 kWh | Modular rack | Expandable in 5–10 kWh steps | Community shared systems |
| LL-OG-COMM20S | 20 kWh | Modular rack | Prepaid metering per household | Institutional · multi-user |
| LL-OG-AGRI10 | 10 kWh | Rack | Pump-ready output | Irrigation · farm supply |
| LL-OG-ISLE20 | 20 kWh | Rack / container | Salt-spray protected | Islands · coastal sites |
| LL-OG-BS50 | 50 kWh | Outdoor cabinet | 95% diesel displacement | Telecom base stations |
| LL-OG-BS100 | 100 kWh | Outdoor cabinet | −40 to 65 °C, auto preheat | Extreme-climate base stations |
| LL-OG-EMER200 | 200 kWh | Container | Rapid deployment | Disaster relief · field camps |
| LL-OG-MINE50 | 50 kWh | Rack / container | Dust and vibration proof | Mining · remote outposts |
By daily demand: lights and phone charging → LL-OG-HOME5.
By site: telecom base station → LL-OG-BS50 / BS100.
Not sure? Send us the daily kilowatt-hour demand, peak load and site conditions — our engineers will size the system directly.
Frequently Asked Questions
The questions EPC contractors and off-grid operators ask most about LiFePO₄ off-grid storage in the Home Systems scenario — 90% (depth of discharge) and 10-year (design life), and what it takes to qualify.
Which pack fits the Home Systems site already in service?
The storage keeps the site DC bus voltage and stacks in modular units, and the inverter charge settings are documented for commissioning. Typical models for Home Systems builds are LL-OG-HOME5 and LL-OG-HOME10.
How much usable capacity does the pack deliver across a day in Home Systems service?
Usable depth of discharge is about 90% against roughly 50% for lead-acid, so the same nameplate rating delivers close to twice the usable energy. Key figure: 90% (depth of discharge).
Will the pack survive Home Systems conditions for its full service life?
The enclosure is rated for outdoor and remote-site duty, with BMS thermal protection and wide-temperature cells. Endurance: 10-year (design life).
How does the pack connect to the charger and control system in the Home Systems scenario?
The BMS and site controller report SOC, SOH and alarms remotely, so most faults are cleared without a site visit.
Can the pack be customized for the Home Systems application and certification file?
Cells, BMS, housing, terminals and nameplate are customizable. Custom packs take 4–8 weeks including tooling. Tell us the daily kilowatt-hour demand, peak load and site conditions — our engineers size the system and recommend the matching model within 24 hours.
Need a Selection Recommendation?
Tell us the load, backup time and installation space — our engineers will recommend the matching battery within 24 hours.
NDA available upon request · Typical response within 12 hours