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Description
OSET 20R 48V 25Ah Lithium Ion Battery Pack Including Smart ChargerHigh quality 25Ah upgrade battery pack to suit all 48V OSET models. This battery pack will DRAMATICALLY improve the handling and performance when compared to the standard SLA (Sealed Lead Acid) batteries. They are less than 1 3rd of the weight, now last up to 5X longer. A high quality 3hr fan cooled smart charger is supplied as standard with this kit. Our lithium battery packs are fully automatic and come ready to use, no need to worry about balancing
High quality 25Ah upgrade battery pack to suit all 48V OSET models. This battery pack will DRAMATICALLY improve the handling and performance when compared to the standard SLA (Sealed Lead Acid) batteries. They are less than 1/3rd of the weight, now last up to 5X longer. A high quality 3hr fan-cooled smart charger is supplied as standard with this kit.
Our lithium battery packs are fully automatic and come ready to use, no need to worry about balancing cells, the built-in battery management system offers the user all the safety features but without the hassle.
Simply plug into the bike using the supplied spade adapter, enjoy, recharge and you're ready to go again.
Summary of Li-Ion advantages compared to Lead Acid
- Higher Voltage in Lithium-Ion over Lead Acid, 3.7v vs 2.0v (almost 2x).
- Greater Energy Density per unit Weight (3x), Volume (6x).
- Lighter / Smaller providing more portability.
- Tolerates Higher Temperatures (60 degC vs 27 degC).
- Faster recharge time, and more time between recharges.
- Higher Charge Efficiency (97% vs 75%).
- More Discharge Cycles (3x).
- Deeper Discharge Tolerance (95% vs 50%) – Can offset cost due to shallow Lead Acid discharge.
- State of Health and the State of Charge can be readily monitored.
- Replacement timeframe, Li-Ion 3-5 years Lead Acid 1.5 - 2 years.
Capacity 21Ah
Approximate Dimensions: 200mm x 175mm x 110mm.
Approximate Weight: 5.2kg.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 1
Not worth the time or money
Never buy these, they causes feet cramps and bad pain even if you use foot pain cream
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Reviewed in the United States on April 30, 2026
★★★★★ 3
Does the job but dangerous to walk with!
Does the job but dangerous to walk with: foot is sliding inside the sock if the foot was treated with cream or lotion prior. It is uncomfortable to sleep with but a necessary hurdle to heal your heels!
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Reviewed in the United States on December 24, 2025
★★★★★ 4
Does the trick
Bought it with urea cream for my senior dad who was diabetes. Careful with it, it will tear
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Reviewed in the United States on April 6, 2026
★★★★★ 5
The really work!
Bought these or a friend with severely dry cracked feet. The change was significant and immediate. They wore them around the house for a day and that night they could already feel the difference.
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Reviewed in the United States on January 12, 2026
★★★★★ 5
Fabulously bizarre and effective
These silicone socks have to be the strangest item I have ever ordered from Amazon. However strange they are, I was pleasantly surprised with them.
My order came with two pairs, and I took one pair out to wash before use. I laughed at handling them then because they were a cross between hospital socks and leftover mannequin skin…trippy.
The socks dried fast, so I put on foot lotion and put the socks on. The socks are beige skin tones that cover the entire foot up to the ankle, basically booties.
The silicone is very soft and makes putting on and taking off the socks easy. They are also surprisingly easy to walk around in because the bottoms have grips, again, like hospital socks. I walked on tile, hardwood, and carpet with no slipping. The booties also stayed in place with no issues.
I was concerned my feet would sweat, but that didn't happen. I was able to wear them for 3 hours without sweaty feet.
When I took them off, my feet were a lot more soft than before or if I had used regular socks. For reference, my feet are not terrible, but the skin around my toes is dry and peeling from my picking(gross, I know).
The socks I got are a size large, which worried me because they are big, but the site said for my shoe size (9) that's what I should order, and they were right. They are the perfect size and stretchy for room.
I can't believe how cool and well-thought-out these socks are, on top of working. Honestly, these are among the top 20 favorite items I've ordered from Amazon. They may look incredibly strange, and they are, but they work wonders.
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Reviewed in the United States on June 5, 2025