LR20 alkaline D battery pack 1.5volt primary battery OEM LR20 battery size D battery Alkaline Battery LR20 D 1.5V battery LR 20 battery cell

Advantages of Alkaline D Cells:

✔ Long shelf life (5–10 years, depending on storage)
✔ Higher capacity vs. zinc-carbon or heavy-duty batteries
✔ Widely available and affordable

Disadvantages:

❌ Not rechargeable (single-use; consider NiMH rechargeable D cells for sustainability)
❌ Performance drops in extreme temperatures

Rechargeable Alternatives:

• NiMH D cells (e.g., EBL, Tenergy) – 1.2V, ~3000–10,000 mAh, reusable.

Storage Tips:

• Keep in a cool, dry place (20–25°C ideal).

• Remove from devices if unused for long periods.

LR20 batteries specificate:

Type: Disposable battery

Part number: LR20

Battery size : D

Chemical System: Zn/KOH—H2O/MnO2

Nominal voltage: 1.5V

Average weight: 135g

Jacket: Foil Label

Reference document: IEC60086-2: 2021,

IEC60086-1: 2021, GB/T8897.1.2-2021, GB/T8897.5-2019

Heavy Metal Contents:

Alkaline batteries Advantage:

Long-lasting and stable power output

0% Mercury, eco-friendly, reducing potential pollution
High-density structure, providing ultra-high performance and long-lasting power
Suitable for medium to high power-consuming electronic devices
Up to 5 year Shelf Life

Shenzhen Hynna Battery Co.,Ltd. A branch company of CIXI Brighter battery Co.,Ltd.

Factory established in 2002, With 22 years of manufacturing experience.

Hynna is one of the best Dry Batteries and Rechargeable Batteries Manufacturers in China .

We have imported advanced automatic machine for production line to ensure quality and products. 

Have approved by SGS , ISO9001 & 14001 , CE, lEC Standards and other certifications . 

All Alkaline Batteries are 0% Mercury & Cadmiumthat complies with Europe Environmental Requirements as well as RoHS compliant.

We have professional teams on R&D, engineers and quality control experts on product development. 

There are eleven production lines in our factory, 

four lines for alkaline battery AA size, 

three lines for alkaline battery AAA size, 

two lines for alkaline battery C size, 

one line for alkaline battery D size and one line for alkaline battery 9V size.

Our monthly production can reach 15 milions. 

There are 30 sets of welding and ancilary equipment in our packing workshop. 

Monthly production can reach 3 milions sets.

According to customer reguirements, packaging, transportation , it can meet customer needs with their different grades.

At the same time , our Rechargeable Battery , Alkaline Batteries and Battery Packs , are also have best quality and enjoy high reputation in customers , 

Batteries can be used in LED light , Emergency light , Flash light ,Toys , Electrical Home Appliance , Portable Computers and all products which needs batteries.