Batteries
Batteries
BrandSOLAX
Solax 15kWh IP21 Lithium Ion Battery 51V 300ah
₨ 575,000PKR · price may vary
BrandSOLAX- Model
- SOLR-51
- Specifications
- 7
- Voltage range43.2V ~ 58.4V
- Battery TypeLifePO4
- Capacity300Ah
- Charge Current200A
- Cycle Life6,000 to 10,000 cycles
- View all 7 specifications ↓
Overview
SolaX manufactures energy storage systems using safe and long-lasting Lithium Iron Phosphate (LiFePO4) technology and an intelligent Battery Management System (BMS). The batteries are designed for high efficiency and are compatible with various inverters. Features:Volt
Specifications
| Summary | |
|---|---|
| Voltage range | 43.2V ~ 58.4V |
| General Specification | |
| Battery Type | LifePO4 |
| Capacity | 300Ah |
| Charge Current | 200A |
| Cycle Life | 6,000 to 10,000 cycles |
| Energy Storage | 15kwh |
| Voltage | 51.2V |
How to read this datasheet
Solax 15kWh IP21 Lithium Ion Battery 51V 300ah is listed with 7 published specifications from SOLAX, including voltage range of 43.2V ~ 58.4V, battery type of LifePO4, capacity of 300Ah and charge current of 200A. Those figures are what decide whether this unit fits your system, so read them against the equipment it will connect to before comparing price.
For a battery, the figures that matter most are communication protocol (CAN or RS485) for talking to the inverter, nominal capacity in ampere-hours (Ah) or kilowatt-hours (kWh), usable capacity after depth of discharge — LiFePO4 typically allows 80–100%, lead-acid closer to 50% and system voltage: 12 V, 24 V and 48 V for low-voltage packs, or a high-voltage stack. Storage is what turns a solar array from a daytime bill-reducer into a system that covers evening loads and rides through outages. It is normally the single most expensive component, so sizing it correctly matters more than with any other part.
Before you buy a battery
The checks below apply to any battery. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.
- Compare usable kilowatt-hours, not nameplate capacity. A 100 Ah lead-acid battery at 12 V is nominally 1.2 kWh but only about 0.6 kWh is safely usable, while a 100 Ah LiFePO4 pack gives you roughly 1.0–1.2 kWh.
- Size from your evening consumption. Add up what actually runs after sunset for the hours you want covered, then divide by the usable capacity per unit — that number, not the array size, sets how many batteries you need.
- Check the continuous discharge rating against your inverter. A battery that stores plenty of energy but can only deliver 50 A cannot support a large inverter at full output.
- Match voltage to the inverter, and confirm the battery appears on the inverter maker's supported list. Closed-loop communication lets the inverter respect the battery's real charge limits instead of guessing.
Where buyers lose money
- Sizing the bank for total daily consumption rather than after-dark consumption, which typically doubles the cost for no benefit.
- Installing lithium packs in an unventilated, hot enclosure. Sustained high temperature is the fastest way to lose cycle life.
- Ignoring the charge current limit and pairing a large array with a small bank, which trips protection and shortens life.
Price and availability in Pakistan
Solax 15kWh IP21 Lithium Ion Battery 51V 300ah is listed at ₨ 575,000 (PKR) for Pakistan. Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.
SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in Pakistan: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports SOLAX locally before ordering.
Solax 15kWh IP21 Lithium Ion Battery 51V 300ah — frequently asked questions
How much does Solax 15kWh IP21 Lithium Ion Battery 51V 300ah cost?
Solax 15kWh IP21 Lithium Ion Battery 51V 300ah is listed at ₨ 575,000 (PKR) for Pakistan. The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.
What are the specifications of Solax 15kWh IP21 Lithium Ion Battery 51V 300ah?
We hold 7 published specifications for this battery, including voltage range 43.2V ~ 58.4V, battery type LifePO4, capacity 300Ah, charge current 200A and cycle life 6,000 to 10,000 cycles. The full table is on this page, listed under model SOLR-51.
Who makes Solax 15kWh IP21 Lithium Ion Battery 51V 300ah?
Solax 15kWh IP21 Lithium Ion Battery 51V 300ah is a SOLAX product, listed under batteries with model reference SOLR-51. The SOLAX brand page lists the rest of its range so you can compare across the catalogue.
Is Solax 15kWh IP21 Lithium Ion Battery 51V 300ah right for my system?
That depends on what it has to connect to. For a battery, check system voltage: 12 V, 24 V and 48 V for low-voltage packs, or a high-voltage stack, continuous charge and discharge current, which limits how much power you can draw from the pack and cycle life at a stated depth of discharge, commonly 3,000–6,000 cycles for LiFePO4 against the rest of your equipment before price enters the decision. Match voltage to the inverter, and confirm the battery appears on the inverter maker's supported list. Closed-loop communication lets the inverter respect the battery's real charge limits instead of guessing.
Where can I buy Solax 15kWh IP21 Lithium Ion Battery 51V 300ah in Pakistan?
SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer in Pakistan — buying in-channel is what keeps the manufacturer's warranty valid.
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