Lexus ES300h Hybrid Battery Cells – 34-Module Replacement Set

Description

Lexus ES300h Hybrid Battery Cells — 34 Remanufactured Replacement Modules

Does your Lexus ES300h need a hybrid battery rebuild? You may be able to replace the internal battery modules instead of purchasing an entirely assembled battery.

Our Lexus ES300h hybrid battery cells kit contains 34 remanufactured replacement modules. We use professional equipment to recondition the cells, evaluate their capacity, and match them according to their electrical characteristics.

Furthermore, our process combines charging, balancing, and deep discharging to help recover lost battery capacity. We then group suitable modules into a balanced replacement set.

IMPORTANT: This product contains internal replacement battery cells only — NOT a complete, ready-to-install hybrid battery.

What Does the Lexus ES300h Battery Cell Kit Include?

Your order includes the replacement modules and new connection hardware needed for the cell replacement portion of your battery rebuild.

What’s Included:

• ✅ 34 Remanufactured Hybrid Battery Cells — a complete internal replacement cell set.

• ✅ Brand-New Bus Bars — new connection hardware for the modules.

• ✅ Brand-New Nuts — included with the bus bars.

• ✅ Professionally Matched Battery Cells — selected according to voltage and capacity.

• ✅ Battery Pack Load Testing — our testing process includes 45-amp load tests.

• ✅ Prepaid UPS Return Label — supplied for returning your original battery cell set.

In addition, we offer three battery capacity configurations with different warranty periods.

Select Your Battery Capacity and Warranty

Different battery cell capacities are available to match your preferred warranty option.

2-Year Warranty — 4.6 Ah Battery Cell Capacity

Our 2-year option includes remanufactured battery cells selected to deliver approximately 4.6 Ah capacity under load.

In addition, the warranty provides unlimited mileage coverage for two years.

3-Year Warranty — 5.2 Ah Battery Cell Capacity

Alternatively, choose the 5.2 Ah option if you prefer the higher specified capacity.

This configuration includes a 3-year unlimited-mileage warranty.

4-Year Warranty — 5.8 Ah Battery Cell Capacity

Finally, our 5.8 Ah configuration provides the highest specified capacity among the three available options.

It also includes four years of unlimited-mileage warranty coverage.

Every warranty option includes Unlimited Mileage throughout the selected warranty period.

Lexus ES300h Hybrid Battery Compatibility

This replacement cell kit is intended for Lexus ES300h vehicles equipped with the compatible 34-module hybrid battery system.

The relevant Lexus ES300h model years in our current product range include:

• 2013 Lexus ES300h Hybrid

• 2014 Lexus ES300h Hybrid

• 2015 Lexus ES300h Hybrid

• 2016 Lexus ES300h Hybrid

Before ordering, confirm that your existing hybrid battery uses the compatible 34-module configuration.

Please Note: This product is a replacement cell set rather than a complete hybrid battery. Therefore, you must reuse the applicable components from your existing battery assembly.

Why Battery Cell Capacity Matters

Voltage alone does not provide a complete picture of hybrid battery condition. Battery capacity also matters because it affects how much energy the cells can store and deliver.

For this reason, our remanufacturing process focuses on measuring and matching battery cell capacity.

First, we evaluate the condition of the modules. Next, we identify weak cells and compare their electrical characteristics.

Afterward, we sort suitable modules according to their capacity. We then organize them into balanced groups based on voltage and capacity measurements.

As a result, the replacement set contains modules selected to work together rather than an unmatched collection of battery cells.

Our Hybrid Battery Reconditioning Process

We use professional battery reconditioning equipment to evaluate, prepare, and match replacement cells.

1. Identifying Weak Battery Cells

First, we inspect battery cells and evaluate their internal resistance.

For example, our process considers cells with high resistance, including readings above 20 mΩ per cell.

2. Charging and Deep Discharging

Next, we perform charging, balancing, and deep-discharging cycles.

These steps aim to recover lost capacity and improve consistency among the battery cells.

3. Measuring Battery Capacity

After the reconditioning cycles, we evaluate cell capacity using amp-hour or watt-hour measurements.

Consequently, we can compare modules according to their available capacity rather than relying on voltage alone.

4. Precision Voltage and Capacity Matching

We then organize suitable battery cells into balanced blocks according to their voltage and capacity.

This matching process helps us prepare a consistent replacement module set.

5. Battery Pack Load Testing

Finally, our battery pack testing process includes demanding 45-amp load tests.

These tests form part of the validation process we use for remanufactured hybrid battery packs.

Together, these steps help us prepare capacity-matched battery cells for the replacement kit.

Installation Requirements — Please Read Before Ordering

This kit is NOT a fully assembled Lexus ES300h hybrid battery.

Instead, it contains internal replacement modules for rebuilding your existing high-voltage battery assembly.

The replacement process requires you to open your original battery pack, remove the old modules, install the replacement cells, and reassemble the battery.

Additionally, you must inspect the condition of the components you plan to reuse.

These include:

• Original battery housing

• Existing orange wiring

• Battery computer (ECU/BMS)

• Other applicable components from your existing battery assembly

No programming is required. However, assembly is necessary.

Because hybrid battery rebuilding involves working with high-voltage components, the kit is best suited for customers with appropriate hybrid battery repair experience.

If you do not have that experience, seek help from a qualified hybrid battery technician.

Shipping Within the Continental United States

We ship our remanufactured battery cell kits throughout the continental United States.

However, our shipping service excludes:

• Alaska

• Hawaii

• APO/FPO addresses

• P.O. Boxes

• U.S. Protectorates

No Upfront Core Deposit — Mandatory Core Exchange

Our replacement cell program does not require an upfront core deposit.

However, you must return your original set of 34 hybrid battery cells as part of the transaction.

How to Return Your Old Battery Cells

After your replacement kit arrives:

1. Remove your original battery cells from your existing hybrid battery assembly.

2. Place the old cells into the same packaging that contained your replacement set.

3. Attach the prepaid UPS return label we provide.

4. Finally, take the return package to your local UPS Store.

What Happens if You Cannot Return Your Original Cells?

If you do not have a returnable set of 34 modules, please contact us before shipment.

In that case, a core charge will apply.

Likewise, failure to return the required original cells will result in a core charge.

Therefore, confirm that you have your original battery cell set available before placing your order.

30-Day Money-Back Guarantee

We offer a 30-Day Money-Back Guarantee for non-working batteries.

What Is Hybrid Battery Reconditioning?

Hybrid battery reconditioning uses charging, balancing, and deep-discharging cycles to help recover capacity in aging battery cells.

Over time, battery cells may develop voltage depression and lose usable capacity.

Our reconditioning process aims to address these conditions while evaluating the remaining performance of the modules.

First, we identify weak cells and compare resistance measurements. Next, we sort cells based on their measured capacity.

We then match compatible modules into balanced groups.

Consequently, the final replacement set contains cells selected according to their voltage and capacity characteristics.

Frequently Asked Questions About Lexus ES300h Battery Cells

Rebuild Your Lexus ES300h Hybrid Battery

Our 34-module replacement kit provides professionally remanufactured battery cells for rebuilding your existing Lexus ES300h hybrid battery.

Furthermore, the kit includes brand-new bus bars and nuts, three battery capacity options, and unlimited-mileage warranty coverage.

Select your preferred capacity and warranty option above to order your replacement battery cell set.