Storage

Battery Energy Storage

Charania Renewables covers the full spectrum of battery energy storage for Pakistan — from residential LV systems under our MountRex label and Aokly partnership, to high-voltage containerised BESS for factories and commercial facilities through our Zetara partnership. Storage is what makes a hybrid system reliable rather than just generative.

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At a Glance

Battery Storage in Numbers

LFP

Chemistry

Lithium Iron Phosphate across all LV systems — thermally stable, long cycle life, suited to Pakistan’s climate.

5 kWh+

to Multi-MWh

Residential 5 kWh LV systems up to containerised HV BESS in the hundreds of kWh and beyond.

3 Labels

MountRex / Aokly / Zetara

Own label, residential channel partner and C&I BESS partner — each selected for a specific market.

Direct

Warranty Support

All warranty claims handled directly by Charania Renewables. No deflection to third parties.

Our Foundation

Built on Battery Storage. Grown into Hybrid Energy.

Charania Renewables began as a battery storage specialist — sourcing, testing and supplying LV systems to the residential and small commercial market through our Aokly partnership. That origin gave us product depth that most integrators in Pakistan don’t have: we understand cell chemistry, BMS behaviour, thermal management in Pakistan’s ambient temperatures and what actually fails in the field after two years of cycling.

We built our own label — MountRex — to specifications we control and warranties we stand behind directly. As our commercial and industrial clients scaled up, we brought in Zetara for the high-voltage containerised systems that large sites require. Storage remains the core of every hybrid energy system we design. Generation captures energy. Storage makes it reliable.

Choosing Your System

LV or HV — The Decision That Determines Everything

Voltage class is the first decision in any storage project. It determines the available products, the inverter architecture, the installation complexity and the total system cost. Get this wrong and the rest of the design is compromised.

Low Voltage (48V)

LV Systems — Residential and Small Commercial

48V architecture. Compatible with all major hybrid inverters in the Pakistani market — Growatt, Deye, Solis, SolarEdge and others. Capacity range 5–30 kWh. Simple installation, channel-partner delivered. Right for homes, small offices and light commercial loads.

MountRex (own label) Aokly (channel partner)

High Voltage (480V+)

HV BESS — Commercial and Industrial

480V–1500V DC bus architecture. Containerised, EMS-managed, site-specific. 100 kWh to multi-MWh. Engineered for factories, warehouses and large commercial facilities. Peak shaving, demand management and backup. Requires full engineering engagement — not an off-the-shelf configuration.

Zetara HV BESS

Chemistry Matters

Why We Use Lithium Iron Phosphate

All Charania Renewables LV systems use LFP chemistry — not as a default, but because it is genuinely the right choice for Pakistan. LFP cells are thermally stable at the ambient temperatures common across Karachi, Lahore and Faisalabad. They do not enter thermal runaway under the heat stress that NMC cells are susceptible to in our climate. LFP delivers 3,000–6,000+ cycles at 80% depth of discharge versus 1,000–2,000 for NMC — a correctly sized LFP system will outlast the solar array it supports. Energy density is lower than NMC but entirely adequate for stationary backup and self-consumption. For a system that charges and discharges daily for 15–20 years in Pakistan, there is no better chemistry available at this price point.

Storage Range

Three Products. Every Scale and Application Covered.

Own Label

MountRex LV

Charania Renewables’ own battery label. Specified, tested and warranted in-house. MR-10, MR-20 and MR-30 kWh options. Direct warranty, no intermediary. Also available in sodium-ion for forward-looking commercial deployments.

MountRex LV Sodium

Channel Partner

Aokly LV

Proven LV LFP storage delivered through our installation partner network. 6,000+ cycle life. Compatible with all major hybrid inverters. CR manages partner onboarding, sizing support and warranty coordination.

Aokly LV

C&I Partner

Zetara HV BESS

High-voltage containerised BESS for commercial and industrial sites. Pre-assembled, pre-tested, EMS-configured. Engineered for peak shaving, demand reduction and backup. Factory acceptance tested before shipment.

Zetara HV

Battery storage sizing and load analysis

We Size Before We Specify

The Right System Is Never a Catalogue Decision

The correct battery system depends on your daily consumption, backup duration requirement, peak demand profile, existing inverter capacity and budget. Too small and you run out of backup during extended outages. Too large and capital sits idle. We run a load analysis before recommending any product — LV or HV, MountRex, Aokly or Zetara. The product recommendation follows the analysis. Not the other way around.

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Get Started

Find the Right Storage System for Your Site

Share your load profile and backup requirements — our team will size the right system and connect you with the appropriate product and installation channel.

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