Sprint SV10 Two-Way Radio Replacement Battery 7.2V 1000mAh
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Sprint SV10 Two-Way Radio Replacement Battery 7.2V 1000mAh - 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.
Sprint SV10 Two-Way Radio Replacement Battery 7.2V 1000mAh - is backordered and will ship as soon as it is back in stock.
Voltage
7.2V
Amp
1000mAh
Sprint SV10 / SV11 / SV21 Series — 7.2V Ni-MH Replacement Battery
This 7.2V 1000mAh Ni-MH battery pack replaces the original cell in Sprint SV10, SV11, SV11D, SV21, and compatible handheld transceivers. It fits the compact form factor used by security, hospitality, and commercial radio users who run these devices through full shifts. Voltage and capacity match the OEM specification exactly.
- SV10 / SV11 / SV21 platform compatibility: These models share the same battery bay geometry, contact layout, and 7.2V nominal voltage rail. The BMS handshake threshold is consistent across the series, so one pack covers the whole fleet without connector modifications.
- Bench tested on actual hardware: We cycled this pack through charge, standby, and transmit loads on the SV10 platform. The BMS handled PTT-triggered current spikes without tripping into overcurrent lockout, and cell voltage recovered cleanly between transmissions.
- First-insertion contact check: If the charger dock shows a fault LED when you first seat this pack, remove it, wipe the gold contact strip with a dry cloth, and reseat firmly. The Sprint dock requires a clean contact cycle to complete the BMS handshake before it will begin charging.
Why the SV10 cuts out mid-transmission on a new Ni-MH pack
Ni-MH cells ship at partial storage voltage — typically 6.0–6.4V on a 7.2V pack. When PTT is pressed, transmit current demand spikes sharply. At storage voltage, internal resistance is higher, so the voltage sag under that spike can breach the BMS low-voltage cutoff threshold even though the pack is not depleted. The radio cuts out not because the battery is faulty, but because it has not yet been fully charged. Run one complete charge cycle before the first shift and the cutout behaviour stops.
Bar indicator reads one bar fewer than expected after swap
The SV10 series uses a simple voltage-threshold bar indicator — each bar corresponds to a voltage band, not a tracked charge percentage. A new pack at storage voltage sits in the lower threshold band and displays fewer bars immediately after insertion. This is not a cell fault. Charge the pack fully to 7.2V nominal and the indicator will step up to the correct bar count. No reset or calibration is needed on the radio itself.
Compatible Models
Technical Specifications
Product Highlights
- Brand: Sprint
- Manufacturer: CS
- Series: Standard
- Color: Green
- Product Type: Ni-MH
- Battery Type: Ni-MH
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
The charger dock fault LED comes on every time I insert the new pack — it never clears. What's wrong?
The dock fault LED on Sprint chargers triggers when the pack voltage is below the acceptance threshold — usually under 6.0V — because the dock interprets that as a damaged or deeply discharged cell and refuses to start a charge cycle. Remove the pack, wipe both the battery and dock contact strips with a dry cloth, and reseat firmly to rule out a contact issue first. If the LED still stays on, the pack needs a recovery pre-charge: place it in a second charger if available, or leave it seated for 10–15 minutes — some Sprint docks will attempt a trickle recovery pulse before switching to full charge. If voltage recovers above 6.0V, the fault LED will clear and normal charging begins.
Radio drops to noticeably weaker transmit power partway through a shift — battery still shows bars. What causes that?
This is voltage sag under sustained RF output load. As Ni-MH cells discharge, internal resistance rises, and repeated PTT use draws enough current to pull the rail voltage down below the radio's full-power TX threshold — even when the bar indicator still shows charge remaining. The bar indicator reads resting voltage between transmissions, not loaded voltage, so it lags behind what the cell can actually deliver under load. Swap the pack at the halfway point of a long shift and recharge the used one immediately — Ni-MH recovers best when not left fully discharged.
The pack has been sitting unused for several months and the radio won't power on at all now. Is the battery dead?
Ni-MH cells self-discharge at roughly 1–3% per day at room temperature, so a pack left for several months can drop below the BMS recovery threshold — typically around 5.0V on a 7.2V pack. Below that level, the BMS locks out to prevent cell reversal and the radio sees no voltage at all. Seat the pack in the charger and leave it for at least 30 minutes; most Sprint-compatible chargers apply a low-current recovery pulse before stepping up to full charge. Once the cell voltage climbs above 6.0V, the BMS releases the lockout and normal charging resumes.
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