New batteries fit my plantronics w740 headset perfectly. They appear to work as intended; however, one of the batteries made a rattling sound when shaken.
Contacted vendor and they immediately shipped me a replacement without any hassle.
Frequently bought together
Similar items that may deliver to you quickly
Page 1 of 1 Start overPage 1 of 1
Compare with similar items
This Item  Synergy Digital Wireless Headset Battery, Compatible with Plantronics W440 Wireless Headset, (Li-Pol, 3.7V, 140 mAh) Ultra Hi-Capacity, Compatible with Plantronics 82742-01 Battery |  |  |  |  |  | |
| Price | $25.95 | $25.00 | $15.99 | $16.89 | $16.99 | $16.99 |
| Delivery | Get it May 14 - 15 | — | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 |
| Customer Ratings | ||||||
| Battery life | ||||||
| Value for money | ||||||
| Easy to install | ||||||
| Easy to remove | ||||||
| Sold By | East Coast Photo | CBQ | Bomibattery | BornMio | Fuzhou QXY Trade LTD. | WirelessFinest |
| capacity | 140 milliamp hours | 140 milliamp hours | 140 milliamp hours | 140 milliamp hours | 140 milliamp hours | 140 milliamp hours |
| battery quantity | 1 product specific | 2 lithium polymer | 1 lithium ion | 1 lithium ion | 1 lithium polymer, 1 lithium ion | 1 lithium ion |
| connector type | wireless | — | — | — | wireless | wireless |
| voltage | 3.7 volts | 3.7 volts of direct current | 3.7 volts | 3.7 volts | 3.7 volts | — |
| reusability | Rechargeable | Rechargeable | Rechargeable | Single Use | Rechargeable | Rechargeable |
| compatible devices | Headset | W745, WH500, WO2, W740, W440 | Solar | Solar | Telephone, Headset | Headset |
Product Description
Power for the Next Generation
Power for the Next Generation
Synergy Digital is a family-owned manufacturer and distribution house that specializes in servicing the battery needs of independent electronic retailers nationwide. As technology continuously progresses, Synergy Digital aims to remain on the cutting-edge of battery chemistry and technology. Synergy Digital brand products are well-produced batteries and battery chargers, ensuring we can continue to deliver the most advanced products for many years to come
High-Energy Density
Each Synergy Digital 3.7 volt, 140mAh Battery is made of Lithium Polymer, designed to last all day so you can keep your wireless headset by your side throughout the entire day. Technologically evolved versions of traditional Lithium-ion batteries, Lithium Polymer batteries have a high-energy density with a long life cycle of charging and discharging. In fact, they have over 20% higher energy density.
Charges in the Cradle
Users can effortlessly charge the Synergy Digital Battery in the wireless headset’s charging cradle when needed. Lithium Polymer batteries do not suffer from memory effects and are designed to be recharged without needing to fully drain them. Simply place your headset back in the charging cradle when leaving the house or office, or retiring for the night and the battery automatically recharges so you can easily manage your PC, mobile and desk phone calls the next day.
Keep Your Headset Charged and Ready to Go at All Times with Synergy Digital
|
|
|
|
|---|---|---|
Uninterrupted CallsA great choice for uninterrupted phone communication, webinars and video conferencing, Synergy Digital’s Battery Combo Pack Compatible for Plantronics Wireless Headset Systems is specially engineered to last for a longer time between charges. Use these long-lasting batteries for your wireless headset to make sure that no important communication will be missed or dropped ever again! |
100% CompatibleMake sure your Plantronics Wireless Headset is charged and ready to receive and make calls. The Synergy Digital Battery Combo Pack allows you to charge more than one headset at the same time. If you only have one headset, simply keep the spare battery on hand for future use. They’re compatible for use with Plantronics Savi 440, Savi 740, WH500A, Savi WH500, Savi W440, Savi W440-M, Savi W720, Savi W740, Savi W740-M, Savi W745 and 86507-01. |
Long-Lasting PowerWith this powerful Synergy Digital SDHS-P902 Battery in your Plantronics Wireless Headset System, you can keep your headset by your side all day long. In addition to being made of Lithium Polymer, each battery is made with high-quality Japanese cells to ensure long-lasting use so you never have to worry about draining off the battery the moment you really need it. |
Reviews with images
On long conference calls and this does the trick!
The batteries are just a bit larger and require just a little extra pressure to snap in, but they still fit on the chargers and last for a really long time. I will typically have calls, or be on back to back calls, that will last from 4 to 6 hours and these hold up well and most times never drop below 75%. I can't speak to how well this battery will perform months into it, but if anything dramatically changes I'll update this post.
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
Reviewed in the United States on May 7, 2017
Size: 1 UnitVerified Purchase
On long conference calls and this does the trick!
Reviewed in the United States on May 7, 2017
The batteries are just a bit larger and require just a little extra pressure to snap in, but they still fit on the chargers and last for a really long time. I will typically have calls, or be on back to back calls, that will last from 4 to 6 hours and these hold up well and most times never drop below 75%. I can't speak to how well this battery will perform months into it, but if anything dramatically changes I'll update this post.
Reviewed in the United States on May 7, 2017
Images in this review
