Archos 8OB Xenon Compatible Battery 3.7V 3500mAh
This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.
WECARE5
Check that your old battery model number and device model to match our description. This makes sure they work together.
We ship your order same day if you buy it before 4 PM EST.
Archos 8OB Xenon Compatible Battery 3.7V 3500mAh - is backordered and will ship as soon as it is back in stock.
Let customers speak for us
Send Your Battery Photo
Expert Technician Help
Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR BATTERY IMAGE
Product & Solutions Expert
✉ sales@batteryweb.com
Battery Care Tips
Battery Care Tips
🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
🔹 Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
Disclaimer
Disclaimer
⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.
🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Archos 8OB Xenon Compatible Battery 3.7V 3500mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
3500mAh
Archos 8OB Xenon — 3.7V Li-Polymer Replacement Battery (P338792)
This 3.7V, 3500mAh lithium-polymer battery replaces the original P338792 cell in the Archos 8OB Xenon 8-inch Android tablet. It fits the 8OB Xenon directly, restoring power to a device used for browsing, video playback, and light computing. Capacity is 12.95Wh, matching the original specification.
- 8OB Xenon fit: The 8OB Xenon uses a single-cell Li-Polymer pack at 3.7V nominal with a three-pin connector carrying charge, ground, and thermistor lines. This replacement matches that connector pinout and cell geometry — 93.40 × 87.80 × 3.00mm — so it seats flat against the chassis without pressure on the display assembly.
- Bench tested on actual hardware: We ran the P338792 replacement through charge and discharge cycles on a cell analyser. The BMS accepted charge current without triggering overcurrent cutoff, held voltage above 3.5V through the mid-discharge range, and dropped to the low-voltage cutoff cleanly without false shutdowns.
- Fuel gauge reset after installation: After fitting this battery, run the tablet down to automatic shutoff, then charge uninterrupted to 100% before using it again. The 8OB Xenon's fuel gauge IC is calibrated against the old cell's discharge curve. One full cycle resets that calibration and eliminates the inaccurate percentage readings that appear immediately after a swap.
Why the 8OB Xenon shuts down at 15–25% remaining
The 8OB Xenon runs its display backlight and Wi-Fi radio simultaneously during video or browsing sessions. That combined load pulls enough current to create a voltage sag at the cell terminals. When the cell voltage dips below the BMS cutoff threshold — typically around 3.2V under load — the tablet shuts down even though the fuel gauge still shows charge remaining. A degraded original cell sags faster and hits that cutoff earlier, which is why shutdowns cluster in the 15–25% range. A fresh cell with full capacity holds terminal voltage higher under the same load, pushing that cutoff point much lower on the gauge.
Fast charging unavailable after battery swap on the 8OB Xenon
Some users find the 8OB Xenon reverts to slow charge speed immediately after a battery replacement. The charge IC uses the first accepted charge cycle to negotiate and log the new cell's characteristics before enabling higher charge rates. Plug the tablet in and allow it to complete one full charge from near-empty to 100% without interruption. After that cycle completes, fast charge behaviour returns to normal on subsequent sessions.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Archos
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-Polymer
- Battery Type: Li-Polymer
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My Archos 8OB Xenon is showing a completely wrong battery percentage after I put in the new battery — is the replacement faulty?
The replacement itself is not faulty. The 8OB Xenon's fuel gauge IC stores a discharge curve calibrated to the old, degraded cell, and it applies that curve to the new one immediately after installation — which produces wildly inaccurate readings. Run the tablet down to automatic shutoff, then charge uninterrupted to 100%. That single full cycle resets the calibration and the percentage display stabilises from there.
My 8OB Xenon keeps cutting off at around 20% after the battery swap — it never did this before the replacement.
This usually happens in the first few cycles after a swap, not because the cell is defective but because the fuel gauge IC is still running the old cell's voltage map. Under the combined load of the display and Wi-Fi, terminal voltage sags below 3.2V before the gauge catches up, triggering the BMS shutoff. Complete two full discharge-to-shutoff and charge-to-100% cycles and the cutoff point will shift back down toward 0–5%.
The battery percentage on my Archos 8OB Xenon drops noticeably fast from 100% even though the tablet feels fine otherwise.
Fast drop from a full charge is a fuel gauge drift symptom, not a cell capacity problem. The gauge overshoots the starting point when it lacks an accurate reference curve for the new cell. One uninterrupted full discharge to automatic shutoff followed by a full charge to 100% gives the IC the data it needs to plot the curve correctly. After that cycle, percentage drain from 100% returns to a steady, linear rate.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
