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2-Pack HW 9V NiMH 200mAh Rechargeable Batteries
$4.50
$12
62% off
w/ Subscribe & Saveat Amazon
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w/ Subscribe & Saveat AmazonDeal Details
TIGER HEAD HI WATT BATTERY HK CO LTD via Amazon has 2-Pack HW 9V NiMH 200mAh Rechargeable Batteries for $9.99 - $1.00 coupon on product page - $4.50 w/ promo code OTO49AZM applied at checkout - $0.50 w/ Subscribe & Save = $4.49. Shipping is free w/ Prime or on $35+ orders.
Note: You must be logged into your account. Coupons are typically one use per account. You have the flexibility to manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to an extra 15% savings when you have 5 or more items in your current monthly subscription.
Thanks to Staff Member DesertGardener for finding this deal.
Features:
Note: You must be logged into your account. Coupons are typically one use per account. You have the flexibility to manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to an extra 15% savings when you have 5 or more items in your current monthly subscription.
Thanks to Staff Member DesertGardener for finding this deal.
Features:
- Convenient 2-Pack Size – Includes two HW rechargeable 9V NiMH batteries (200mAh/1800mWh), ideal for customers needing a compact set for essential devices or as spare power.
- Fast Recharging with Safety Protection – Designed for rapid charging when used with a compatible charger (not included). Built-in protection guards against overcharge, over-discharge, overheating, and short circuits.
- Cost-Saving & Eco-Friendly – Each battery can be recharged up to 1000 times, reducing e-waste and cutting costs compared to disposable 9V batteries.
- Wide Device Compatibility – Suitable for smoke detectors, wireless microphones, guitar pedals, multimeters, RC toys, and other 9V-powered devices. Perfect for both home and professional gear.
- Pre-Charged & Low Self-Discharge – Arrives pre-charged and ready to use. Advanced low self-discharge technology maintains usable power for months in storage.
Editor's Notes
Written by powerfuldoppler | Staff- About this deal:
- Please see original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
- About this store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
Community Notes
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TIGER HEAD HI WATT BATTERY HK CO LTD via Amazon has 2-Pack HW 9V NiMH 200mAh Rechargeable Batteries for $9.99 - $1.00 coupon on product page - $4.50 w/ promo code OTO49AZM applied at checkout - $0.50 w/ Subscribe & Save = $4.49. Shipping is free w/ Prime or on $35+ orders.
Note: You must be logged into your account. Coupons are typically one use per account. You have the flexibility to manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to an extra 15% savings when you have 5 or more items in your current monthly subscription.
Thanks to Staff Member DesertGardener for finding this deal.
Features:
Note: You must be logged into your account. Coupons are typically one use per account. You have the flexibility to manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to an extra 15% savings when you have 5 or more items in your current monthly subscription.
Thanks to Staff Member DesertGardener for finding this deal.
Features:
- Convenient 2-Pack Size – Includes two HW rechargeable 9V NiMH batteries (200mAh/1800mWh), ideal for customers needing a compact set for essential devices or as spare power.
- Fast Recharging with Safety Protection – Designed for rapid charging when used with a compatible charger (not included). Built-in protection guards against overcharge, over-discharge, overheating, and short circuits.
- Cost-Saving & Eco-Friendly – Each battery can be recharged up to 1000 times, reducing e-waste and cutting costs compared to disposable 9V batteries.
- Wide Device Compatibility – Suitable for smoke detectors, wireless microphones, guitar pedals, multimeters, RC toys, and other 9V-powered devices. Perfect for both home and professional gear.
- Pre-Charged & Low Self-Discharge – Arrives pre-charged and ready to use. Advanced low self-discharge technology maintains usable power for months in storage.
Editor's Notes
Written by powerfuldoppler | Staff- About this deal:
- Please see original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
- About this store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
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Community Reviews
These 9V rechargeable batteries are best suited to low drain devices like smoke detectors, TENS units, voltmeters, sprinkler controllers, and other occasional use gear. The low price makes repeated recharging cheaper than buying alkaline 9V batteries, and the lithium style packs are described as holding voltage better than NiMH. The main concerns are capacity and longevity, since the 200mAh rating is viewed as very small and some expect short runtime. Charging compatibility also needs checking, though standard 9V chargers may work with the built in cutoff.
The batteries can be useful for low-demand devices like smoke detectors where long idle time matters.
The batteries can retain a near-9V reading for much of their discharge cycle due to boosted or regulated voltage design.
The 9V rechargeable batteries can work for a TENS unit when a compatible charger is available.
The batteries may be rechargeable with standard 9V chargers because built-in charge limiters can cut off when full.
The NiMH 9V capacity is described as too small and prone to self-discharge, limiting practical usefulness.
The NiMH 9V voltage can read around 1.2V to 1.5V after recharging, which can make many 9V applications unreliable.
The batteries may not last long in higher-drain use, with expectations of failing within months.
The listing and returns can be problematic when the wrong item arrives and the listing changes, making correct replacement difficult.
Common Questions (4)
AI-generated summary based on comments from the community. Updated ago
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37 Comments
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I bought this one because I also needed AAA batteries and ebl is a known brand.
https://slickdeals.net/f/18847141-9v-lithium-batteries-usb-rechargeable-4-pack-1100mah-for-9-85-or-8-86-with-amazon-s-s?v=1&p=1803774
https://slickdeals.net/f/18847141-9v-lithium-batteries-usb-rechargeable-4-pack-1100mah-for-9-85-or-8-86-with-amazon-s-s?v=1&p=1803774
https://slickdeals.net/f/18847141-9v-lithium-batteries-usb-rechargeable-4-pack-1100mah-for-9-85-or-8-86-with-amazon-s-s?v=1&p=1803774
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No way are they 1100mAh. At best, maybe 600.
I have a few EBL of this type [eblofficial.com]. Claim to be 600mAh, They did go 560mAh @0.2A draw when brand new. 3 years later are more like 400-450mAh. They have not been used hard, just in water leak detectors that notify me when they get low, so they don't got completely dead.
They DO go for months, no problem
NiMh > pathetic.
No way are they 1100mAh. At best, maybe 600.
I have a few EBL of this type [eblofficial.com]. Claim to be 600mAh, They did go 560mAh @0.2A draw when brand new. 3 years later are more like 400-450mAh. They have not been used hard, just in water leak detectors that notify me when they get low, so they don't got completely dead.
They DO go for months, no problem
NiMh > pathetic.
I think people are having issues with their voltmeters (If they actually have them), or their veracity. There are LOTS of crap reviews on batteries, and considerable ignorance on how this kind of lithium conversion cell works.
I think people are having issues with their voltmeters (If they actually have them), or their veracity. There are LOTS of crap reviews on batteries, and considerable ignorance on how this kind of lithium conversion cell works.
i think i'm mistaken in assuming electronics to raise voltage are as simple/cheap/efficient as those that lower it (like in lithium 1.5v AA size)
i think i'm mistaken in assuming electronics to raise voltage are as simple/cheap/efficient as those that lower it (like in lithium 1.5v AA size)
IF you try that put them in a fireproof spot and watch carefully, monitor frequently the first time. (Works on my 2 brands, but that's a small sample.)
Voltage increase/decrease both need even more space robbing electronics, increase complexity (more probable failures), and WILL add heat, which is a problem for all these kind of batteries.
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I think people are having issues with their voltmeters (If they actually have them), or their veracity. There are LOTS of crap reviews on batteries, and considerable ignorance on how this kind of lithium conversion cell works.
I have some older EBL Li-ion and it's exactly like you said. 2 pouches x 4.2V when freshly charged, goes to 2x3.6V in weeks or months at most. Not enough for smoke detectors. Capacity around 400-600mAh.
However I think the newer ones sold on Amazon such as the HW 9V Li-ion rechargeable have a single larger pouch and voltage booster/regulator. That's why people are measuring 9V constant. It will keep 9V for most of discharge cycle then drop to something like 1V suddenly. Similar to AA Li-ion that keep 1.5V constant.
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