2 Gumstick Batteries and Charger for Sony NC-5WM NC-6WM NH-9WM NH-10WM NH-14WM 1-528-231-11 WM-701C WM-EX921 D-E888 D-E900 D-E905 D-E990 D-E999 WM-RX707 WM-F100 WM-FX675 Player
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Returnable until Jan 31, 2026
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Features
- Milestock Replacement 2 Batteries and Charger; Battery Specification: Type: Ni-MH; Voltage: 1.2V; Capacity: 1400mAh; Battery Dimensions: 2.6" X 0.7" X 0.24" (67 x 17 x 6mm). Charger Specifications: Input: DC 5V / 500mA (Micro USB port), Output: DC 1.48V / 250mA.
- Compatible with Sony NC-5WM NC-6WM NH-9WM NH-9WM(N) NH-10WM NH-14WM NH-14WM(A) 1-528-231-11 D-777 D-E01 D-E888 D-E900 D-E905 D-E990 D-E999 D-EJ01 D-EJ825 D-EJ885 D-EJ915 D-EJ925 D-EJ955 D-EJ985 D-EJ1000 D-EJ2000 D-NE1 D-NE9 D-NE10 D-NE20 D-NE20LS D-NE830 D-NE830LS D-NE900 D-NE920 MZ-E25 MZ-E30 MZ-E33 MZ-E35 MZ-E900 MZ-E909 MZ-E520 MZ-EP11 MZ-M10 MZ-M100 MZ-N1 MZ-N710 MZ-N910 MZ-NF810 MZ-NF810CK MZ-NH900 MZ-R55 MZ-R90 MZ-R91 MZ-R900 MZ-R900DPC MZ-R900PC MZ-R909 MZ-RH10 MZ-RH910
- NW-MS9 NW-MS11 TCM-80V WM-701C WM-EX5 WM-EX20 WM-EX190 WM-EX511 WM-EX610 WM-EX612 WM-EX615 WM-EX618 WM-EX622 WM-EX670 WM-EX672 WM-EX900 WM-EX910 WM-EX921 WM-EX2000 WM-F100 WM-FX675 WM-GX674 WM-RX707
- Compatible with Panasonic HHF-AZ09 HHF-AZ01 RFKFHFAZ01E2 RFKFHFAZ09PM HHF-AZ201S HHF-1P HHF-1PSC IR14M RP-BP140H RP-BP61 RP-BP61PY RP-BP62 RQ-S15 RQ-SX75 RP-BP62 RP-BP105 RX-SA79 SL-CT700 SL-CT730 ST-CT790 SL-CT800 SL-CT810 SL-CT820 SL-CT830 SJ-MR220 SL-J905 SL-J910 Portable CD Player
- Compatible with JVC BN-R127 BN-R1210 QAB0011-003 XM-P55 XM-P55SL XM-PX70 XM-PX70WT XM-PX70BU XM-PX70PN, Sharp AD-N55BT MD-MT190 MD-MT190H MD-MT888 MD-MT888H MD-ST500 MD-ST70 MD-ST77 Player, Aiwa MHB-901 RP BP61 RP BP61PY RQ-SX40, Energizer ER-GUM1 ERGUM1 iRiver SlimX iMP-550;
Brand: Milestock
Color: Purple
Output Voltage: 1.48 Volts (DC)
Input Voltage: 5 Volts (DC)
Camera Model Compatibility: Leica M10
Package Dimensions: 5.5 x 4.5 x 1.87 inches
Item Weight: 4.8 ounces
Item model number: NH-14WM-2-Pcs+Charger
Batteries: 2 Nonstandard Battery batteries required. (included)
Date First Available: October 1, 2025
Manufacturer: Milestock
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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
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To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I daily carry a Sony Walkman from 1999 that uses Gumstick batteries and I'm very happy that manufacturers still make these. I have two others from another manufacturor that I have been cycling between for a years and I wanted to get another set to replace them when when their charge begines to drop off. Here is my experience so far with the Milestock Gumstick Bartters and Charger: The Batteries - Functionally, these 1400 mAh 1.2v Gunstick batteries last around as long as the 1450 mAh batteries I'm used to. When I first got them, I fully charged them and fully drained each for a few cycles to ensure there wasn't anything a miss with the cells. After that, I have been using them as my normally as my primary Walkman batteries with no issues. The Charger - More bulky that it needs to be and slightly slower than my other charger. The charge speed (mA output) isn't a negative as it could prolong the life of your batteries and the difference from my other charge is likely only around 30 minutes. The bulkeyness of the charger is a little annoying as it takes up as much space as another batter charger that holds four 18650 batteries. To be fair, most Gumstick battery chargers are this way with the exception of an some older OEM chargers that might come with your device. Still, this is an area that Milestock could improve and doing so would help them to stand out from other manufacturers. The charger comes with a short USB-A to Micro USB cable and has lights that turn red while you are charging. One detail that I appreciate over my other charger is the little indent on the positive charging terminal that helps hold your battery. If there were a second, lower protrusion on the negative charging terminal, your battery could comfortably sit against the back of the charger when installed, however, you'll need to lift the negative end of the battery slightly so that it makes contact with the negative terminal. Still, the indent on the positive charging terminal helps keep the battery in place and is an improvement on the usual fair. Conclusion - If you need a set of Gumstick batteries and a charger, this is a good option. The price is fair, the charger is functional, and the Ni-MH batteries seem to be of good quality.
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Reviewed in the United States on November 27, 2025 by Joe Joe
Unboxing and Setup: The charger was in a regular small white cardboard box. Batteries in some blister pack, which wasn't too hard to get through with scissors. The charger has micro-USB port for charging and a short, cheap USB-A to micro-USB cable. Just plug into a regular USB-A port and it should provide charge to the unit. Putting the batteries into the charger correctly proved to be challenging. Design and Build Quality: Batteries are fine for dimensions. The charger, however is a univeral charger not meant specifically for the batteries. Here in lies the problem. It takes a few seconds to align the batteries correctly so that a charge goes into the batteries. You can tell by the indicator lights (shaped like diamonds) when it turns orange. Green means, no contact, charged, or just on but no battery detected. Features and Performance: Batteries work great. The charger is a slow charging mess... so just leave it for a few hours and come back. It is either orange or green. Ease of Use: Charger is a 2/5 for ease of use. Battery Life: Good. I didn't test the capacity but on the CD player I was using it in, it was more than enough. I'm happy to have even found these. Pros and Cons: Pros: My old equipment works again, yay! Batteries are compatible. Cons: Charging it is a pain with the included charger. Rating Breakdown (1–5 stars) • Build Quality: 4/5 • Ease of Use: 2/5 • Performance: 5/5 • Value for Money: 5/5 • Battery Life: 5/5 • Overall Rating: 4/5 Conclusion: If you have an old, super slim, portable device and need new batteries. This is a good, easy recommendation because they don't sell these in electronics stores. I'd suggest looking for your old charger or getting a new one because alignment issues are a pain. If you get it wrong, you'd think you charged your batteries when the green just means its on.
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Reviewed in the United States on November 23, 2025 by Mike Mu Mike Mu
I was surprised to see this battery. One of my Sony Walkman used this, it's more than 25yr old. Fortunately my model has a AA battery option as well. This kit was packed ok, but no literature at all. The charger has only one side working, I checked and the other side read 0 volts, something broken inside. I will probably open and repair it sometime. But, a brand new unit detective is not acceptable. I charged both batteries to full, separately. It did work in the walkman. However, a fully charged battery when inserted into the device it reads only 50%. It needs better quality control. Also it's quite expensive for two NiMh batteries.
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Reviewed in the United States on November 26, 2025 by SKS SKS
This battery charger added an additional option abd back-up plan in needed situations! Thank you!
Reviewed in the United States on November 21, 2025 by Daryl Jones
Honestly, I'm not even mad that these don't hit their full 1400 mAh. I knew they wouldn't, I was just hoping they weren't cheap junk testing out to under 1000 mAh. The tested capacity came out to 1220 and 1235 mAh respectively, which really isn't that bad given the track record of aftermarket gum stick nimh batteries. That's actually pretty darn good battery life for what these are. The internal resistance is also pretty low at 20 mOhms and they arrived with 1.23V. This implies these have not been sitting around for years on the shelf and they're not repackaged old cells. These should run my mini disc recorder for a very decent amount of time. Very adequate and functional replacements for the originals which have long been discontinued. A good value, would recommend. Taking one star off because I can't in good conscience give a five-star rating to marketing with inflated capacity, even if it isn't too egregious, with performance at 88% of their advertised rating.
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Reviewed in the United States on November 27, 2025 by Jesse Jesse