Product Overview
The new mobile batteries are equipped with rechargeable Lithium Iron Phosphate batteries, available in 5,000mAh and 10,000mAh capacities. This battery type is known for its stability at high temperatures, offering a higher level of safety compared to general lithium-ion batteries.
Enhanced Safety Features
Lithium Iron Phosphate batteries are designed to suppress thermal runaway, a critical safety advantage. This technology significantly reduces the risk of ignition and explosion, which can be a concern with conventional lithium-ion batteries.

For instance, the thermal decomposition temperature for Lithium Iron Phosphate is approximately 600-700°C, whereas for conventional lithium-ion batteries, it is around 200°C. This higher thermal stability contributes to a safer user experience.

Furthermore, these batteries demonstrate remarkable resistance to ignition. Even when subjected to piercing, they are less likely to ignite. It is important to note that while the batteries have high thermal stability, users should still adhere to usage precautions, such as avoiding physical impact.


Extended Lifespan
One of the key benefits of Lithium Iron Phosphate batteries is their extended cycle life. These mobile batteries offer a cycle life of over 1,000 charge-discharge cycles, meaning they can maintain over 80% of their initial capacity even after 1,000 full cycles (from 100% to 0% charge). This represents approximately double the lifespan of typical mobile batteries, which often have a cycle life of around 500 cycles.

Safety Comparison
| Feature | Conventional Lithium-ion (NMC/NCA) | Lithium Iron Phosphate (LiFePO₄) |
|---|---|---|
| Cathode Material | Rare Metal | Lithium Iron Phosphate |
| Thermal Decomposition Temp. | Approx. 200°C | Approx. 600-700°C |
| Ignition Risk | Moderate to High | Extremely Low |
| Cycle Life (Charge/Discharge Cycles) | 500 cycles | 1000-2000 cycles |
| Stability/Swelling Risk | Swelling risk with long-term use | Almost no swelling |
| Safety | Moderate | High |

Available Models
The mobile batteries are available in two capacities and multiple color options.
10,000mAh Models

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Rakuten Ichiba: https://item.rakuten.co.jp/keitai-kazariya/rli100c20w03cgry/
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Rastabanana Direct: https://rbdirect.jp/shopdetail/000000012239/charger/page1/order/

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Rakuten Ichiba: https://item.rakuten.co.jp/keitai-kazariya/rli100c20w03cgry/
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Rastabanana Direct: https://rbdirect.jp/shopdetail/000000012238/charger/page1/order/
5,000mAh Models

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Rakuten Ichiba: https://item.rakuten.co.jp/keitai-kazariya/rli050c2a02cgry/
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Rastabanana Direct: https://rbdirect.jp/shopdetail/000000012615/charger/page1/order/

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Rakuten Ichiba: https://item.rakuten.co.jp/keitai-kazariya/rli050c2a02cgry/
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Rastabanana Direct: https://rbdirect.jp/shopdetail/000000012614/charger/page1/order/
Sales Channels
The new mobile batteries are available through various channels, including:
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Rastabanana Direct: https://rbdirect.jp/
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Amazon.co.jp: https://www.amazon.co.jp/stores/page/0562BC4C-C217-4CDD-984A-14CD043CDE17
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Rakuten Ichiba Store: https://item.rakuten.co.jp/keitai-kazariya/
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Yahoo! Shopping Store: https://store.shopping.yahoo.co.jp/keitai-kazariya/
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au Pay Market Store: https://wowma.jp/user/28463604
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National electronics retailers
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Supermarkets
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Mobile phone shops
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General merchandise stores
Rastabanana Official App
Rastabanana has also launched its official app. Members who register can enjoy a 10% discount on purchases at Rastabanana Direct at any time, along with periodic app-exclusive coupons. The app allows users to register their smartphone model to quickly find compatible accessories with a single tap.

Stay Updated
Follow Rastabanana on social media for the latest information:
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Instagram: https://www.instagram.com/rastabanana_direct
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YouTube: https://youtube.com/channel/UCx8zxaKqOul0AhNw1alAgF
Company Information
Company Name: Telephone Lease Co., Ltd.
Representative: Yoshitaka Kato, Representative Director
Location: 1-13-1 Sannomaru, Naka-ku, Nagoya-shi, Aichi
Established: September 3, 1988
URL: https://www.rastabanana.com/
Inquiries
Product Inquiries:
Telephone Lease Co., Ltd.
Email: mailto:info2@rastabanana.com
Release Inquiries:
Telephone Lease Co., Ltd.
Contact: Miura
Email: mailto:miura@rastabanana.com

