Batteries

Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH

₨ 215,000PKR · price may vary

Specifications: 16

Altitude<3000 m
communication interfaceCAN / RS485
Operation TemperatureCharge: 0 ~ 55°C, Discharge: -20 ~ 55°C
Life Cycle>8000 at 80% DOD
Nominal voltage51.2 V
View all 16 specifications ↓

Overview

The Fronus TP-LD51 5.12kWh Lithium Ion Battery is a high-performance energy storage solution designed for solar and UPS systems. Here's a quick rundown of its key features.Features:Rated IP40

For Indoor Use Only135A

Contant Discharge at 45°CBuilt-In WiFi

Access RemotelyTouch Scree

Specifications

Summary
Altitude	<3000 m
communication interface	CAN / RS485
Operation Temperature	Charge: 0 ~ 55°C, Discharge: -20 ~ 55°C
TECHNICAL SPECIFICATION
Life Cycle	>8000 at 80% DOD
Nominal voltage	51.2 V
Storage temperature	-20 ~ 30°C (12 months), 30 ~ 60°C (6 months)
General Specification
Battery Type	LifePO4
Cooling concept	Natural cooling
Current	Charge: 100 A, Discharge: 135 A
Humidity	20 ~ 85% RH (non-condensing)
Nominal Energy	5.12 kWh
Operating voltage range	42.4 ~ 57.6 V
Protection	IP40
Rated Capacity	102 ~ 106 Ah
Weight	46±1 kg
Dimension	335 x 626 x 169 mm

Reading the specifications

Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH is listed with 16 published specifications from Fronus, including altitude of <3000 m, communication interface of CAN / RS485, operation temperature of Charge: 0 ~ 55°C, Discharge: -20 ~ 55°C and life cycle of >8000 at 80% DOD. 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 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%, system voltage: 12 V, 24 V and 48 V for low-voltage packs, or a high-voltage stack and continuous charge and discharge current, which limits how much power you can draw from the pack. 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.

What to check before ordering

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.

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.
Read the warranty in full: lithium warranties are stated as a term plus either a cycle count or a total energy throughput, and whichever limit arrives first ends the cover.

Common mistakes

Mixing old and new batteries, or different chemistries, in one bank. The weakest unit drags the whole bank down and can be damaged by the others.
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.

Price and availability in Pakistan

Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH is listed at ₨ 215,000 (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 Fronus locally before ordering.

Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH — frequently asked questions

How much does Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH cost?

Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH is listed at ₨ 215,000 (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 Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH?

We hold 16 published specifications for this battery, including altitude <3000 m, communication interface CAN / RS485, operation temperature Charge: 0 ~ 55°C, Discharge: -20 ~ 55°C, life cycle >8000 at 80% DOD and nominal voltage 51.2 V. The full table is on this page.

Who makes Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH?

Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH is a Fronus product, listed under batteries. The Fronus brand page lists the rest of its range so you can compare across the catalogue.

Is Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH right for my system?

That depends on what it has to connect to. For a battery, check continuous charge and discharge current, which limits how much power you can draw from the pack, cycle life at a stated depth of discharge, commonly 3,000–6,000 cycles for LiFePO4 and round-trip efficiency, around 90–95% for lithium and 75–85% for lead-acid against the rest of your equipment before price enters the decision. 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.

Where can I buy Fronus LD 55 5.12kWh Lithium Ion Battery 51v/100AH 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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