LEXUS
Lexus ES300h Hybrid Battery (2013–2018)
Problems, Warning Codes, Repair Options and Prices — Mobile Service in North Dallas
✓ 244.8-volt NiMH pack, 34 modules
✓ Module repair from $700
✓ Diagnostic credited toward the repair
Quick Answer
Battery: Nickel-metal hydride (NiMH), 34 modules of 7.2 V — about 244.8 V nominal
Location: Trunk, behind the rear seat
Most common codes: P0A80 and P0A7F
Related models: Camry Hybrid and Avalon Hybrid of the same era use a similar system
Typical fix: Module repair or full rebuild after testing
The ES300h is one of the most popular Lexus hybrids in Dallas–Fort Worth. Its NiMH pack sits behind the rear seat and is cooled by cabin air. As these cars age, weak modules and heat are the usual reasons for a hybrid warning.
ES300h Hybrid Battery by Generation
| Item | ES300h (2013–2018) |
|---|---|
| Chemistry | NiMH |
| Modules | 34 modules of 7.2 V |
| Nominal voltage | About 244.8 V |
| Location | Trunk, behind the rear seat |
| Newer models | 2019+ ES300h — call us with your year |
ES300h: What Owners Should Know
- The 2013–2018 ES300h uses 34 NiMH modules of 7.2 volts (about 244.8 volts) in a metal case behind the rear seat.
- It is closely related to the Camry Hybrid and Avalon Hybrid of the same years, which helps with parts availability for module repair.
- Lexus hybrid battery coverage on these years is 8 years / 100,000 miles for most Texas-sold cars. A low-mileage 2018 ES300h may still be covered — check by VIN.
- The 2019+ ES300h is a new generation with a different pack location — call us with your year.
- Check your VIN for open recalls on NHTSA.gov before paying for any hybrid repair.
Common Symptoms
- Red triangle, check engine light and “Check Hybrid System”
- Engine running more often and lower MPG
- Battery gauge swinging quickly from full to low
- Weak acceleration on hills or highway merges
- Loud battery cooling fan
- Car won’t go into READY after sitting
Problems We See Most
Weak modules
Age and heat weaken some modules first. The car then sets codes and runs the engine more.
Cooling fan and intake
The intake near the rear seat collects dust. A hot pack ages faster.
Not always the battery
Sensor, inverter or 12V faults can also set warnings — we test first.
Warning Codes on the ES300h
On the ES300h, a worn pack usually sets P0A80 or P0A7F, often with P3000 or an INFO code. We confirm every code with block-voltage and load testing before recommending anything — see our hybrid error code guide.
ES300h Hybrid Battery Prices
| Service | Price (tax and mobile service included) |
|---|---|
| On-site full diagnostic | $150 in our North Dallas service area ($200 elsewhere in DFW) — credited toward the repair |
| Full pack rebuild | Quoted after testing — call for a price |
| Module repair (only weak modules replaced) | From $700 labor + parts |
| External pack charge (car sat too long / pack drained) | From $300 — see hybrid battery charging |
| Pre-purchase hybrid battery inspection | From $200 |
| Full battery replacement | Call for a quote |
Final price is confirmed after testing. Warranty runs from 1 to 3 years depending on the vehicle’s condition and mileage, in writing before work begins. See our full hybrid battery price list.
How DFW Hybrid Battery Handles a ES300h
We read every code and info code, check block voltages at rest and under load, inspect the battery cooling fan and intake, test the 12V battery, and show you the numbers before you decide on a module repair or a full rebuild.
Real ES300h jobs — coming soon
We publish real repair notes, test data and customer reviews for every model we work on. Had your ES300h checked by us? Leave a Google review — or see our repair case studies for similar hybrids.
Frequently Asked Questions
Will a battery repair keep the ES300h smooth and quiet?
Yes. A balanced pack restores normal electric assist, so the engine does not have to work as hard.
Is the ES300h battery the same as the Camry Hybrid?
They are closely related 244.8-volt NiMH packs. We confirm parts by VIN.
Will a repaired battery feel like new?
A balanced pack restores normal hybrid assist and fuel economy when the rest of the system is healthy.
Do you offer a written warranty?
Yes — 1 to 3 years depending on condition and mileage, in writing before work begins.
Other Lexus hybrids we service: CT200h · HS250h · NX300h · RX400h / RX450h · GS450h · All Lexus models
Related: Prices · All vehicles · Hybrid Error Codes · Battery Charging · Diagnostics · Warranty · Areas We Serve
ES300h Hybrid Warning?
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