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Newport HT70 Ventilator Replacement Battery 14.4V 2600mAh Li-ion

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From $63.99 USD $78.99
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Fits Newport HT70, HT70 Plus ventilators and replaces OEM battery part number BAT3205A.
14.4V and 2600mAh capacity delivers 37.44Wh — sufficient discharge cycles for extended clinical transport without mid-shift depletion.
Connector seats into the battery bay with a single locking tab; orientation is keyed and does not allow reverse insertion.
We bench tested the cell under simulated ventilator load cycles; the BMS accepted the new chemistry without fault codes after one full charge-discharge sequence.
After installation, allow the device to complete its power-on self-test cycle without interruption — medical ventilators verify BMS thresholds at startup, and halting this sequence triggers a false battery fault that persists until the next full reboot.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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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.

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🔹 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.

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⚠️ 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.

Voltage

14.4V

Amp

2600mAh

Newport HT70 Ventilator — 14.4V Li-ion Replacement Battery (BAT3205A)

This is a 14.4V, 2600mAh (37.44Wh) Li-ion replacement battery for the Newport HT70, HT70 Plus, and HT70 Ventilator. It replaces OEM part BAT3205A and installs directly into the battery bay on each of these portable ventilator variants. Voltage and connector match the original — no adapters needed.

  • HT70 and HT70 Plus compatibility: Both models run the same 14.4V battery rail and use the same BAT3205A connector interface. The BMS handshake protocol is identical across the HT70 family, so one cell covers all three variants without firmware conflict.
  • Bench tested on actual hardware: We ran this cell through charge-discharge cycles on the HT70 platform and monitored BMS communication. The protection circuit responded correctly to the ventilator's load profile — no false low-battery trips, no cutoff at inrush.
  • Post-install self-test requirement: After fitting this battery, let the HT70 complete its full power-on self-test without interruption. The device runs a BMS verification sequence at startup — cutting power during that window triggers a persistent battery fault that won't clear until the next clean reboot.

Why the HT70 alarms low battery immediately after a confirmed full charge

The HT70's BMS compares incoming cell chemistry data against a threshold calibrated to the original OEM cell's charge curve. A new replacement cell hasn't yet established the same charge-profile signature. On the first one or two cycles, the BMS may read state-of-charge conservatively and trip the alarm even when the pack is genuinely full. Run one complete charge-discharge cycle on the device before treating any low-battery alarm as a true fault. After that cycle, the BMS recalibrates and the alarm threshold aligns with the new cell's curve.

HT70 not completing boot sequence after battery swap

If the replacement cell sat in storage before installation, self-discharge may have pulled the pack voltage below 12V — the HT70's minimum BMS recovery threshold. At that voltage, the device initiates a boot sequence but halts before completing it, which can appear as a dead unit. Connect the ventilator to AC mains power and leave it charging for a minimum of four hours before attempting another cold boot. Once the cell returns above 13.5V, the BMS re-enables full startup and the device completes its self-test normally.

Compatible Models

HT70 Ventilator HT70 Plus HT70

Replaces Part Numbers

BAT3205A

Technical Specifications

Voltage14.4V
Amp Hours2600mAh
Capacity2600mAh
Rate37.44Wh
Net Weight194.2g /6.85 oz
Gross Weight264.2g /9.32 oz
Approximate Weight264.2g /9.32 oz
Dimension 73.58 x 68.55 x 18.60mm

Product Highlights

  • Brand: Newport
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The HT70 is showing a low battery alarm right after I put in a freshly charged replacement — is the new battery faulty?

Almost certainly not. The HT70's BMS validates new cells against the OEM charge curve, and a replacement cell hasn't established that profile yet. On the first one or two cycles, the device reads state-of-charge conservatively and trips the alarm early even when the pack is genuinely charged. Run one full charge-discharge cycle on the device — the BMS will recalibrate and the alarm will align with the new cell's actual capacity.

My HT70 won't power on at all after the new battery was sitting in a box for a few months — what's happening?

Self-discharge during storage has likely pulled the pack below the HT70's BMS recovery floor, typically around 12V. Below that threshold, the protection circuit blocks startup to prevent cell damage, so the device appears completely dead. Connect to AC mains and charge uninterrupted for at least four hours before attempting another boot. Once the cell climbs back above 13.5V, the BMS re-enables startup and the device should boot normally.

The HT70 is shutting off unexpectedly during use — it passed the self-test but cuts out under load. What causes this?

New Li-ion cells have higher internal resistance in the first 10 cycles, which causes voltage sag under the HT70's sustained respiratory load. If that sag is deep enough, the BMS interprets it as a critically low cell and triggers a protective cutoff — even when resting voltage looks fine. The fix is to run several full charge-discharge cycles on the device to condition the cell and reduce internal resistance. After roughly 5–10 cycles, sag under load drops significantly and the mid-use cutoff stops occurring.

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