901D BOWMAR Pocket Calculator Battery Pack

Review BOWMAR Vintage Rare Pocket Calculator Working Well No Battery Pack

The Bowmar 901D Pocket Calculator Battery Pack is a compact and convenient solution for extending the life of your pocket calculator. This battery pack is specifically designed for use with older model calculators that require a 22.55mm x 1.3mm, 1.5V Lithium coin cell battery.

Measuring just 1.6 inches long, 0.8 inches wide, and 0.3 inches thick, this battery pack is incredibly portable and can easily be carried in a purse, pocket, or calculator case. Its small size, however, does not detract from its power. Each battery in the pack has a capacity of 125mAh, allowing it to provide a significant amount of power to your calculator.

The Bowmar 901D Pocket Calculator Battery Pack comes with a total of six batteries, ensuring that you have a sufficient supply for extended periods of use. Each battery is individually wrapped in a protective plastic sleeve to prevent leakage and ensure the longest possible battery life.

To install the batteries, simply remove the back cover of your calculator and insert the battery pack in the battery compartment. The pack is designed to fit snugly and securely in place, with the batteries making direct contact with the calculator's battery terminals. Once installed, the calculator will draw power from the battery pack instead of the individual batteries.

This battery pack is a great option for those who rely on their pocket calculator for work or academic purposes. Its compact size and long battery life make it an essential accessory for anyone who wants to ensure they always have a reliable calculator on hand. Whether you're a student, a professional, or just someone who appreciates the convenience of a pocket calculator, the Bowmar 901D Pocket Calculator Battery Pack is an excellent investment.

The Bowmar 901D Pocket Calculator Battery Pack is a replacement battery solution for older model calculators. Here are some pros and cons to help you make an informed decision about purchasing this product:

1. Compatibility: The Bowmar 901D battery pack is designed to fit and work with a wide range of calculator models, making it a versatile option for those with older calculators.

2. Convenience: Having a spare battery pack on hand can save time and hassle, as you won't have to wait for a battery to charge or search for new batteries when your calculator runs out of power.

3. Durability: The Bowmar 901D battery pack is built to last, with a sturdy design and long battery life, ensuring that you won't have to replace it frequently.

4. Affordability: Compared to the cost of buying new batteries regularly, investing in a battery pack can save you money in the long run.

1. Limited compatibility: While the Bowmar 901D battery pack is compatible with a wide range of calculators, it may not work with the very latest models.

2. Size and weight: The battery pack is slightly larger and heavier than standard calculator batteries, which may not be ideal for those who require a compact solution.

3. Initial investment: The upfront cost of purchasing a battery pack may be higher than the cost of buying individual batteries, but the long-term savings can make it a worthwhile investment.

In conclusion, the Bowmar 901D Pocket Calculator Battery Pack offers convenience, durability, and affordability for those with older calculator models. While it may have some limitations in terms of compatibility and size, the benefits of having a reliable and long-lasting power source for your calculator outweigh the drawbacks. If you frequently use a calculator and want to ensure that you always have a backup power source on hand, the Bowmar 901D battery pack is a worthwhile investment.

Details:

Display looks good and all keys are responsive to input. Lots and lots to choose from. Includes pictured soft pouch. Bowmar 901D vintage rare pocket calculator working well - no battery pack, does not include a power cord and does battery pack inside.

Will gladly combine shipping. Looks fairly clean inside - see pics. Powered this on using external ac power source and the calculator works great. Only what is pictured included, nothing more.

specifications vintcalc:

• brand: Bowmar
• mpn: 901d
• part type: Pocket Calculator Battery
• country of origin: United States
• vintage: Yes

payments vintcalc:

• wallet: google-pay
• credit card: discover
• other

general vintcalc:

• category: Electronics > Vintage Calculators

offer vintcalc:

• availability: in stock
• quantity: 1
• started: february 11, 2026
• sold #: 6
• best offers: true
• options: ship-to-home

seller vintcalc:

• rating: 99.9%
• # reviews: 5945
• city: gilroy, california

returns vintcalc:

• method: money back
• policy: returns accepted
• paid by: seller
• time: 30 days

shipping vintcalc:

• transit: 3-8 days
• carrier: usps
• service: usps ground advantage
• type: fixed
• class: standard