How to remove and install the 12V Car Battery on Toyota Prius?

The removal process for the 12V battery requires first unlocking both washer tank cover knobs and removing the rear floor board before removing the rear deck floor box from the vehicle. The rear No. 3 floor board must have four claws detached for removal while the battery negative cable (engine wire) requires a nut to be loosened. Remove the connector cover by detaching its 3 claws and then disconnect the brake control power supply connector together with the 2 fusible link block connectors, followed by removing the wire harness from the quarter vent duct then removing the duct itself with its attached bolt and screw. Unfasten the assembly fusible link block by using a clip remover tool and removing its clip and slight loosening of the nut. First detach the bolt and nut to remove the battery hold down clamp. Then extract the grommet of the battery room ventilation hose together with the battery unit from the vehicle before finally removing the battery room ventilation hose from the battery. The installer should first connect the battery room ventilation hose to the battery while putting the battery back into the vehicle then fastening the grommet of the battery room ventilation hose. Place the battery hold down clamp back while tightening the bolt and nut to 5.4 N.m (55 kgf.cm, 48 in.lbf) before installing the fusible link block assembly with its nut and clip then tighten the nut to 6.0 N.m (61 kgf.cm, 53 in.lbf). Placing the quarter vent duct requires tightening the screw and bolt to 4.0 N.m (41 kgf.cm, 35 in.lbf). After that, you must reattach wire harnesses and fusible link connectors and brake control power supply connector before reinstalling the connector cover using its claws. Secure the 3 claws to install the connector cover while connecting the battery negative cable and tightening its nut to 6.0 N.m (61 kgf.cm, 53 in.lbf). The procedure ends by securing the rear No. 3 floor board through its 4 claws, installing the rear deck floor box and locking the 2 cover knobs on the rear No. 2 floor board. Perform the initialization procedure for systems that demand it during negative battery terminal cable replacement and reconnection.

OEM Toyota Prius Car Battery

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Toyota Prius Battery Part Number: 86770-47010
$3596.04 MSRP: $5270.05
You Save: $1674.01 (32%)
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Product Specifications
- Other Name: Battery Assembly, Mayday
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2017 Toyota Prius | Four, Four Touring, One, Three, Three Touring, Two, Two Eco | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Stack Sub-Assembly, HV Supply Part Number: G950A-47021
$6133.43 MSRP: $8988.62
You Save: $2855.19 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Battery Sub-Assembly, Supply
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2025 Toyota Prius | Plug-In Hybrid SE, Plug-In Hybrid XSE, Plug-In Hybrid XSE Premium | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Toyota Prius Stack Sub-Assembly, HV Supply Part Number: G9509-47051
$6133.43 MSRP: $8988.62
You Save: $2855.19 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Battery Sub-Assembly, Supply
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2025 Toyota Prius | Plug-In Hybrid SE, Plug-In Hybrid XSE, Plug-In Hybrid XSE Premium | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Toyota Prius Stack Sub-Assembly, HV Supply Part Number: G9508-47181
$6133.43 MSRP: $8988.62
You Save: $2855.19 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Battery Sub-Assembly, Supply
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2025 Toyota Prius | Plug-In Hybrid SE, Plug-In Hybrid XSE, Plug-In Hybrid XSE Premium | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Toyota Prius Battery Assembly, Hev Su Part Number: G9510-47162
$10308.97
Ships in 1-2 Business Days
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Product Specifications
- Other Name: BATTERY ASSY, HEV SU
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2025 Toyota Prius | Plug-In Hybrid SE, Plug-In Hybrid XSE, Plug-In Hybrid XSE Premium | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Toyota Prius Battery Assembly, Hev Su Part Number: G9510-47212
$13727.55
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Product Specifications
- Other Name: BATTERY ASSY, HEV SU
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2025 Toyota Prius | Plug-In Hybrid SE, Plug-In Hybrid XSE, Plug-In Hybrid XSE Premium | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Toyota Prius Battery Assembly, Hev Su Part Number: G9510-47033
$1802.17 MSRP: $2049.00
You Save: $246.83 (13%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: BATTERY ASSY, HEV SU
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2009 Toyota Prius | Base, Touring | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Part Number: 28800-21172
$354.51 MSRP: $519.54
You Save: $165.03 (32%)
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Product Specifications
- Replaced by: 28800-37092
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2015 Toyota Prius | Base, Five, Four, One, Persona Series, Three, Touring, Two | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Part Number: 28800-21223
$825.52 MSRP: $1209.80
You Save: $384.28 (32%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2023-2025 Toyota Prius | LE, Limited, Nightshade, Plug-In Hybrid SE, Plug-In Hybrid XSE, Plug-In Hybrid XSE Premium, XLE | 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Toyota Prius Battery Assembly, Hev Su Part Number: G9510-16011
$3761.19 MSRP: $5512.06
You Save: $1750.87 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: BATTERY ASSY, HEV SU
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2023-2025 Toyota Prius | LE, Limited, Nightshade, XLE | 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Part Number: 28800-21051
$323.01 MSRP: $461.18
You Save: $138.17 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2003 Toyota Prius | Base | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Assembly, Hev Su Part Number: G9510-76013
$2085.05 MSRP: $2588.67
You Save: $503.62 (20%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: BATTERY ASSY, HEV SU
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2015 Toyota Prius | Base, Five, Four, One, Persona Series, Three, Two | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Assembly, Hev Su Part Number: G9510-47131
$2213.23 MSRP: $2750.00
You Save: $536.77 (20%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: BATTERY ASSY, HEV SU
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2018 Toyota Prius | Four, Four Touring, One, Three, Three Touring, Two, Two Eco | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Assembly, Hev Su Part Number: G9510-47021
$1955.67 MSRP: $2408.47
You Save: $452.80 (19%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: BATTERY ASSY, HEV SU
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2003 Toyota Prius | Base | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Part Number: 28800-21182
$198.05 MSRP: $235.30
You Save: $37.25 (16%)
Ships in 1-2 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2009 Toyota Prius | Base, Touring | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Part Number: 00544-H4052-470
$174.88 MSRP: $206.00
You Save: $31.12 (16%)
Product Specifications
- Other Name: Truestart H4 (En)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2019-2022 Toyota Prius | 2020 Edition, L Eco, LE, Limited, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Part Number: 86777-76040
Product Specifications
- Other Name: Battery, Mayday
- Replaces: 86777-0W060, 86777-48020, 86777-76020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010-2015 Toyota Prius | Base, Five, Four, One, Persona Series, Three, Two | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Part Number: 00544-35060-550
$145.52 MSRP: $171.43
You Save: $25.91 (16%)
Product Specifications
- Other Name: Truestart Battery; Vehicle Battery
- Replaces: 00544-35060-490
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2003 Toyota Prius | Base | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Part Number: 00544-21171-325
$185.53 MSRP: $220.43
You Save: $34.90 (16%)
Product Specifications
- Other Name: Battery 12V
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2018 Toyota Prius | Four, Four Touring, One, Three, Three Touring, Two, Two Eco | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Battery Assembly Part Number: G9510-47170
$2184.88 MSRP: $2750.00
You Save: $565.12 (21%)
Product Specifications
- Other Name: Battery Assembly, Hv Supply; Drive Motor Battery Pack; Battery
- Manufacturer Note: HIGH VOLTAGE BATTERY-LITHIUM ION(HEATER)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2019-2022 Toyota Prius | 2020 Edition, L Eco, LE, Limited, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)

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Toyota Prius Car Battery

Choose genuine Car Battery that pass strict quality control tests. You can trust the top quality and lasting durability. Shopping for OEM Car Battery for your Toyota Prius? Our website is your one-stop destination. We stock an extensive selection of genuine Toyota Prius parts. The price is affordable so you can save more. It only takes minutes to browse and find the exact fit. Easily add to cart and check out fast. Our hassle-free return policy will keep you stress-free. We process orders quickly for swift delivery. Your parts will arrive faster, so you can get back on the road sooner.

The Toyota Prius Car Battery is an electrical source that maintains the hybrid system and onboard equipment in operation. The primary drive Car Battery is the large pack, which has a different capacity and size depending on the type of Prius. An older model has smaller modules, while a more recent model has larger energy storage. The larger the capacity, the higher the cost to purchase the car. Every Toyota hybrid also has its own 12-volt Car Battery, which enables the car to start when the high-voltage cells are depleted. This smaller battery tends to last longer than usual since normal driving loads are drawn primarily by the traction pack. Both forms of Car Battery produce heat when they are in operation, and hence the vehicle has a special cooling system to ensure that there is no overheating and failure. The expected service life of a Toyota battery is about three to five years, after which it may need replacement along with any applicable labor charges. In general, the combined dual-battery system allows a Toyota Prius to reconcile acceleration requirements with the traditional electrical ones. These solutions solve problems that are specific to a Prius cooling system. There are routine checks of every Car Battery to sustain lifespan.

Toyota Prius Car Battery Parts and Q&A

Battery
28800-21181
Q: How to remove and install the 12V Car Battery on Toyota Prius?
A:
The removal process for the 12V battery requires first unlocking both washer tank cover knobs and removing the rear floor board before removing the rear deck floor box from the vehicle. The rear No. 3 floor board must have four claws detached for removal while the battery negative cable (engine wire) requires a nut to be loosened. Remove the connector cover by detaching its 3 claws and then disconnect the brake control power supply connector together with the 2 fusible link block connectors, followed by removing the wire harness from the quarter vent duct then removing the duct itself with its attached bolt and screw. Unfasten the assembly fusible link block by using a clip remover tool and removing its clip and slight loosening of the nut. First detach the bolt and nut to remove the battery hold down clamp. Then extract the grommet of the battery room ventilation hose together with the battery unit from the vehicle before finally removing the battery room ventilation hose from the battery. The installer should first connect the battery room ventilation hose to the battery while putting the battery back into the vehicle then fastening the grommet of the battery room ventilation hose. Place the battery hold down clamp back while tightening the bolt and nut to 5.4 N.m (55 kgf.cm, 48 in.lbf) before installing the fusible link block assembly with its nut and clip then tighten the nut to 6.0 N.m (61 kgf.cm, 53 in.lbf). Placing the quarter vent duct requires tightening the screw and bolt to 4.0 N.m (41 kgf.cm, 35 in.lbf). After that, you must reattach wire harnesses and fusible link connectors and brake control power supply connector before reinstalling the connector cover using its claws. Secure the 3 claws to install the connector cover while connecting the battery negative cable and tightening its nut to 6.0 N.m (61 kgf.cm, 53 in.lbf). The procedure ends by securing the rear No. 3 floor board through its 4 claws, installing the rear deck floor box and locking the 2 cover knobs on the rear No. 2 floor board. Perform the initialization procedure for systems that demand it during negative battery terminal cable replacement and reconnection.