PA3817U-1BRS Battery for Toshiba Satellite A665 C655 L655 L755 P755 | 11.1V 5200mAh 58Wh 6-Cell – ...
- Model Numbers: PA3817U-1BRS Battery
- Battery Type: Lithium-ion (Grade A+ High-Density Cells)
- Voltage: 11.1V (Fully compatible with 10.8V)
- Capacity: 5200mAh / 58Wh
- Cells: 6-Cell
- Connector: External Snap-in Interface
- Condition: 100% Brand New from Factory
- Life Cycle: 600 – 1000 recharge cycles
- Multiple Protection: Over Current, Over Voltage, Over Charge & Discharge, Overheat, Short Circuit, ESD, EMI
- Color: Black
- Certifications: UL2054, CE, FCC, RoHS, UN38.3, MSDS, IEC62133
- OEM/ODM: Yes(Accepted)
- Warranty: 18 Months After Sales, 24/7 Email Support.
- Product Dimensions: 8 x 2 x 0.75 inches
- Item Weight: 10.6 ounces
PA3817U-1BRS Battery for Toshiba Satellite A665 C655 L655 L755 P755 | 11.1V 5200mAh 58Wh 6-Cell
Detailed Product Specifications and Features:
Core Technical Parameters:
| Property | Specification |
|---|---|
| Model Numbers | PA3817U-1BRS Battery |
| Battery Type | Lithium-ion (Grade A+ High-Density Cells) |
| Voltage | 11.1V (Fully compatible with 10.8V) |
| Capacity | 5200mAh / 58Wh |
| Cells | 6-Cell |
| Connector | External Snap-in Interface |
| Condition | 100% Brand New from Factory |
| Life Cycle | 600 - 1000 recharge cycles |
| Multiple Protection | Over Current, Over Voltage, Over Charge & Discharge, Overheat, Short Circuit, ESD, EMI |
| Color | Black |
| Certifications | UL2054, CE, FCC, RoHS, UN38.3, MSDS, IEC62133 |
| OEM/ODM | Yes(Accepted) |
| Warranty | 18 Months After Sales, 24/7 Email Support. |
| Product Dimensions | 8 x 2 x 0.75 inches |
| Item Weight | 10. 6 ounces |
Technical Note:
Design Note: The PA3817U-1BRS is a universal external 6-cell battery.
Performance Upgrade: This 5200mAh version uses high-density Grade A+ cells, providing extended runtime over the original 4400mAh/48Wh factory specs.
Compatibility Note: It is functionally interchangeable with PA3816U, PA3818U, and the older PA3634U series.
Safety Note: Features an upgraded Texas Instruments (TI) chipset to ensure perfect communication with Toshiba’s “PC Health Monitor” software.
Important: Fits into the rear center of the laptop with a dual-latch locking mechanism.
Product Features:
- Battery Newest Premium Grade Cells
- Best Circuit Board
- Multiple command chip control, keep the battery stable charge and discharge;
- Over-charger protection and discharger protection, short-circuit protection, ensure fast charges and low power consumption
- Easy & Quick Installation
- Our battery is 100% compatible with the original battery and meets
- CE/FCC/ROHS/UL-certified standards. It is 100% new from the manufacturer and can support up to 1000 recharge cycles over the life of the battery
- Power Interface: Gold-plated connector points to ensure current transport excellently and serve stably.
- Enclosure: The enclosure is made of ABS + PC high-quality material, which has a high-temperature-resistant function to protect your laptop from overheating
- Battery Buckle: The battery buckle is closely connected to the laptop, and the metal interface is stably powered
PA3817U-1BRS Battery Battery Compatibility Laptop Model List:
1. Compatible Laptop Model List (Comprehensive)
| Series | Specific Model Variants & Chassis Prefixes |
|---|---|
| Satellite A Series | A660, A665, A665D Series: A665-S5170, A665-S6086, A665-S6094(Plus legacy A500, A505) Chassis Prefixes: PSA0CU, PSA0SU, PSA0C, PSA0S, PSAR3 |
| Satellite C Series | C645, C650, C655, C655D, C660, C670, C675 Series: C655-S5049, C655-S5128 Chassis Prefixes: PSC00U, PSC02U, PSC08U, PSC0YU, PSC12U |
| Satellite L Series | L630, L645, L650, L655, L670, L675, L730, L740, L745, L750, L755, L770, L775(Plus legacy L500, L505, L515, L537) Chassis Prefixes: PSK00U, PSK04U, PSK0LU, PSK1JU, PSK1NU, PSK2GU, PSK2YU |
| Satellite M/P Series | M640, M645, P745, P750, P755, P755D, P770, P775 Series: P755-S5215 Chassis Prefixes: PSM6GU, PSM6QU, PSPLNU, PSPNYU |
| ⚠️ Absolute Incompatibility | NOT FOR: Satellite L855, C855 (Uses PA5024U). NOT FOR: Satellite A300, L300 (Uses PA3534U). |
| Visual Check | This battery is a long, straight bar (approx. 20.5cm). If your battery has an "L-shaped" notch on one corner, it is the PA3536U. |
2. PA3817U-1BRS Battery Compatible Part Numbers (P/N List)
-
- Modern Codes: PA3817U-1BRS, PA3816U-1BRS, PA3818U-1BRS, PA3819U-1BRS
- Legacy Codes: PA3634U-1BRS, PA3635U-1BRS, PA3636U-1BRS, PA3638U-1BAS
- OEM Identifiers: PABAS227, PABAS228, PABAS229, PABAS230, PABAS117, PABAS178
Why Choose HTJ PA3817U-1BRS 5200mAh Battery?
- High-Density 58Wh Energy Reservoir:
The Satellite L755 and A665 were built for high-performance multimedia. Our 5200mAh upgrade provides a larger capacity “fuel tank,” ensuring your Intel Core i5 or i7 processor can run longer between charges without the bulk of a 9-cell battery. - GPU-Stable Voltage Delivery:
Many of these laptops feature dedicated NVIDIA or ATI graphics. High-demand tasks can cause inferior batteries to “sag” in voltage, leading to crashes. Our HTJ cells are tested for high-current stability to maintain peak performance during 1080p video or light gaming. - Reinforced Structural Casing:
The PA3817U is a long battery prone to “center-flex” in larger 17-inch chassis like the L775. We use a high-impact ABS+PC housing to ensure the locking tabs remain crisp and the connector pins stay perfectly aligned over years of use. - 18-Month Factory-Direct Warranty:
Because these models are legacy units, many batteries sold today are “New Old Stock” that has degraded on a shelf. HTJ batteries are freshly manufactured in small batches to guarantee 100% health and true 5200mAh capacity.
How to Install Your New PA3817U-1BRS Battery？
The Toshiba PA3817U-1BRS is an external snap-in battery. No tools are required for this replacement.
⚠️ Crucial Safety Preparation
- Shutdown: Perform a full Windows shutdown (not Sleep or Hibernate) and disconnect the AC adapter.
- Surface: Place the laptop upside down on a soft, clean surface to avoid scratching the glossy “Fusion” finish found on many A665/L755 models.
- Latch Identification: Locate the two sliders on the battery bay—one is a manual “LOCK” (usually with a red icon) and the other is a spring-loaded “RELEASE.”
PA3817U-1BRS Battery Step-by-Step Installation Guide:
- Unlock & Release: Slide the manual lock switch to the “Unlocked” position. Then, slide and hold the spring-loaded release lever.
- Removing the Old Battery: While holding the release lever, gently pull the old battery away from the laptop body. It should slide out horizontally along the guide rails.
- Inspect the Terminals: Before inserting the new battery, check the 9-pin connector inside the laptop bay for dust or lint.
- Align & Replacing: Align the guide rails of your new HTJ PA3817U with the laptop’s battery bay.
- Insert: Push the battery firmly into the bay until you hear a clear “click” from the spring-loaded latch.
- Secure: Move the manual lock switch back to the “Locked” position. (Important: This prevents the battery from wiggling, which can cause the laptop to shut down if bumped).
- Final Calibration: Plug in your AC adapter and charge to 100%. Once full, use the laptop until it reaches 5%, then recharge to 100% to synchronize the Windows battery health meter.
💡 Pro Tip:
If your laptop displays “Plugged in, not charging” or the battery light flashes orange after installation, perform a Static Reset:
- Remove the battery and unplug the charger.
- Hold the laptop’s Power Button for 60 seconds to drain residual electricity from the motherboard capacitors.
- Reinsert the battery, plug in the charger, and restart. This forces the BIOS to re-detect the new battery hardware.
FAQ (Frequently Asked Questions)
Q: My laptop is a Satellite L755-S5216. Is this the right battery?
A: Yes! The L755 series is the primary compatible model for the PA3817U. Your chassis code (PSK2YU) is fully supported.
Q: Can I use this if my original was the older PA3634U? A: Absolutely. The PA3817U is the updated successor to the PA3634U. They are physically identical and 100% interchangeable.
Q: My original says 10.8V, but yours is 11.1V. Is it safe?
A: Yes. These are two ways of labeling the same 3-cell serial battery chemistry. Your Toshiba charger and laptop are designed to accept any voltage between 10.8V and 11.4V.
Q: Does this fit the Satellite L855?
A: No. The L855 uses the PA5024U battery. While they are both straight bars, the locking tabs and internal pins are positioned differently.
Q: My battery says PA3634U, but yours says PA3817U. Will it really fit?
A: Yes! The PA3817U is the “universal” successor. It is the same size and shape as the PA3634U and was released to provide a standard replacement for over 100 different Toshiba models.
Q: What is the difference between PA3817U and PA3816U?
A: These are functionally identical. The different numbers originally referred to the factory that made them or the specific laptop color they shipped with. Our HTJ battery replaces all versions with a single high-performance unit.
Q: Can I upgrade to this 5200mAh battery if my original was 4400mAh?
A: Absolutely. It’s like putting a larger fuel tank in your car. It fits in the same space but provides roughly 20% more runtime per charge.
Q: My laptop says “Plugged in, not charging” after I put the new battery in. What do I do?
A: Don’t worry, this is usually a Windows software glitch. Try the Static Reset (detailed in the “How to Install” section above) to force the motherboard to re-handshake with the new battery.
Laptop Maintenance Tips:
- New battery: For using a new battery, you’d better try a few cycles of discharging to 5%. then charging up to 95%. So that it can be activated completely
- Overuse: Do not always run a battery to 0%, as this would shorten its usage life.
- Charging sequence: When charging, first install the battery, then turn on the power. When fully charged, first cut off the power, then pull the power plug.
- Long-term storage: Please store the unused battery fully charged. (Charge it once a month.) Do not store at low power to prevent reducing the lifespan of a battery
- Charger: Do not replace the laptop adapter casually. If the original adapter cannot be applied due to malfunction or damage, please replace the models so as not to reduce the service life of the battery due to incompatibility.
【IMPORTANT】: Press [ Ctrl+F ] to find the laptop models.
Need a legacy/unlisted charger? Send your Toshiba Laptop Battery specs or CONTACT US → We will source it for you!
We are a professional manufacturer of laptop batteries, laptop adapters, and laptop keyboards. We are committed to providing high-quality, competitively priced, and superior performance batteries and the best service to customers.
