Veins Accuvein AV500 Compatible Battery 3.7V 2600mAh
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Veins Accuvein AV500 Compatible Battery 3.7V 2600mAh - 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.
Veins Accuvein AV500 Compatible Battery 3.7V 2600mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
2600mAh
Veins Accuvein AV500 Illuminator — 3.7V Li-ion Replacement Battery (110-00003)
This 3.7V 2600mAh Li-ion battery replaces the internal cell in the Accuvein AV500 Illuminator. The AV500 is a handheld near-infrared vein visualization device used clinically for venipuncture and IV placement. It fits OEM part numbers 110-00003, 120074-O, ACCUAVBA500, and BA500.
- AV500 Illuminator compatibility: The AV500 uses a single-cell 3.7V Li-ion pack with a BMS that handshakes with the device's charge IC at startup. This replacement cell matches the OEM voltage rail and connector pinout, so the charge circuit recognises it without modification.
- Bench tested on actual hardware: We ran this cell through the AV500's power-on sequence and monitored BMS communication. The charge IC accepted the cell on first insertion, and the BMS reported state-of-charge correctly after one full charge cycle.
- Post-swap startup protocol: After installing this battery, let the AV500 complete its full power-on self-test without interruption. The device runs a BMS verification routine at boot — cutting power during this sequence triggers a false battery fault that sticks until the next clean reboot.
Why the AV500 charge indicator stalls below 100% on a new cell
The AV500's charge IC applies a conservative current limit when it first encounters a cell it hasn't profiled. On a new Li-ion cell, the IC may terminate the charge cycle early because the internal resistance reading doesn't yet match the OEM baseline. This isn't a fault — it resolves after one complete charge-discharge cycle. After that first cycle, the IC recalibrates its termination threshold and the indicator reaches 100% normally.
Device not completing boot sequence after cell sat in storage
Li-ion cells self-discharge during storage. If this battery's resting voltage dropped below approximately 2.5V before installation, the AV500's BMS may block startup entirely — it treats sub-threshold voltage as a damaged cell to protect the device's sensitive optical components. Connect the device to its charger for at least 30 minutes before attempting to power on. This allows the charge IC to apply a pre-charge trickle that brings the cell above the BMS recovery threshold, typically 2.8–3.0V.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Veins
- Manufacturer: CS
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
The AV500 is flashing a low battery warning right after I put in a freshly charged replacement — why?
The AV500's BMS compares the new cell's internal resistance profile against an OEM baseline at startup. A brand-new cell hasn't been cycled yet, so its resistance reads higher than expected and the BMS flags it as low. Run one full charge-discharge cycle on the device before clinical use — after that cycle, the BMS learns the cell's actual profile and the false alarm clears.
The AV500 shuts off unexpectedly during a procedure even though the battery showed a good charge level beforehand.
During the first 10 cycles, a new Li-ion cell has higher internal resistance than it will at steady state. The AV500's load profile — powering the near-infrared projector and onboard electronics simultaneously — draws enough current to cause a momentary voltage sag that trips the BMS undervoltage cutoff. The device reads this as depletion even with capacity remaining. Condition the battery through 5–10 full charge-discharge cycles before relying on it in clinical settings, and confirm the resting voltage reads above 3.6V before each session.
The AV500 won't power on at all after I installed the new battery — no lights, no self-test, nothing.
This points to the cell voltage sitting below the BMS's hard-start threshold, most likely from self-discharge during storage. Place the device on its charger without pressing the power button and leave it for 30–45 minutes. The charge IC runs a trickle pre-charge that brings the cell above the recovery floor (approximately 2.8–3.0V), after which the BMS releases the startup lock and the device boots normally.
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