3.7V 2000mAh Li-Polymer Compatible Battery 1ICP59/42/61
Available by SPECIAL ORDER. Delivery for this product typically takes 2 weeks.
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3.7V 2000mAh Li-Polymer Compatible Battery 1ICP59/42/61 - is backordered and will ship as soon as it is back in stock.
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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.
3.7V 2000mAh Li-Polymer Compatible Battery 1ICP59/42/61 - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
2000mAh
Custom Battery Pack 1ICP59/42/61 — 3.7V Li-Polymer Replacement Battery
This is a 3.7V, 2000mAh (7.4Wh) lithium-polymer replacement cell built to the 1ICP59/42/61 form factor. It measures 62.00 × 41.12 × 5.84mm — a slim pouch cell common in compact portable electronics. If the original pack has swollen, lost capacity, or stopped holding charge, this unit replaces it directly.
- 1ICP59/42/61 form factor: This part number encodes the cell dimensions — 59mm × 42mm × 61mm internal stack geometry in a pouch format. Devices using this cell rely on the exact footprint and lead tab placement for fit and electrical connection, not just voltage.
- Bench tested on actual hardware: We cycled this cell through charge and discharge at 3.7V nominal, confirming BMS cutoff behaviour at the low-voltage threshold and verifying the cell reaches full charge without current limiting after the first conditioning cycle.
- Fuel gauge calibration after swap: If the host device shows a fuel gauge or battery percentage indicator, run one complete charge-to-discharge cycle immediately after installation. Devices with integrated coulomb counters need this cycle to recalibrate against the new cell's actual capacity.
Pack not reaching full charge on the first cycle
New lithium-polymer pouch cells ship at storage voltage — typically 3.6V to 3.85V — not full charge. On the first cycle, the charge IC in the host device or charger may apply a reduced current while it characterises the new cell. This is normal conditioning behaviour, not a fault. By the second full charge, the cell should reach its rated 4.2V terminal voltage without restriction.
Device not recognising the pack after installation
Some devices perform a voltage-range check or BMS handshake before accepting a replacement pack. If the pack arrives below the device's minimum acceptance threshold, the host will reject it before any charge current flows. Connect the pack to a compatible charger first and bring it to at least 3.8V, then reinstall. If the device still rejects it, power-cycle the host unit with the pack seated to trigger a fresh handshake.
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Custom Battery Pack
- 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
The device shows the battery percentage jumping around erratically after I installed this pack — what's causing it?
The fuel gauge IC in the host device is still calibrated to the old cell's charge curve, so it misreads the new pack's state of charge. Run one full charge from flat to 4.2V without interruption, then discharge through normal use until the device shuts off automatically. That single cycle gives the coulomb counter enough data to lock onto the new cell's actual capacity. After that, the percentage readout should track steadily.
The pack feels noticeably warm during the first charge — is that normal or a sign of a fault?
Mild warmth during the first charge cycle is normal for a lithium-polymer cell being conditioned from storage voltage. The charge IC applies a higher initial current as the cell comes up from ~3.6V, and that generates more heat than a top-up charge on a partially full pack. If the pack becomes hot to the touch or the device cuts off the charge early, remove the pack and check for swelling before continuing. A warm-but-not-hot pack completing its first charge to 4.2V is within normal range.
My device powers on but immediately drops to a low battery warning even though the pack just arrived — why?
Replacement packs ship at storage voltage, usually 3.6V to 3.85V, which falls below the full-charge threshold of 4.2V. The device interprets this as a depleted pack and triggers a low-battery warning immediately. Plug into the charger and let it run a full uninterrupted charge cycle before judging the pack's capacity. Once it hits 4.2V terminal voltage, the warning should clear and the device will operate normally.
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