High-Capacity 18650/21700 Deep Cycle Lithium Battery
Premium 3500mAh lithium-ion cell ensures extended runtime and stable performance for high-drain devices. Features advanced deep cycle technology for 500+ recharge cycles with minimal capacity loss.
Precision-engineered 3.7V output with built-in PCB protection against overcharge, over-discharge, and short circuits. Ultra-thick pure copper electrodes maximize conductivity and heat dissipation.
Ideal for laptops, power tools, RC toys, and custom battery packs. OEM-grade cells with laser-welded terminals ensure secure connections in DIY projects.
Wholesale-exclusive pricing for bulk orders. Complies with international safety standards including UL, CE, and RoHS certifications. Ships globally with bulk order discounts.
Recent Purchase
lbe***
Nominal Voltage:3.7v;Nominal Capacity:3000mAh;Battery Type:cylindrical;
$17.58
48 days ago
tmm***
Nominal Voltage:3.7v;Nominal Capacity:3000mAh;Battery Type:cylindrical;
$111.34
28 days ago
ayp***
Nominal Voltage:3.7v;Nominal Capacity:3000mAh;Battery Type:cylindrical;
$111.34
22 days ago
yyl***
Nominal Voltage:3.7v;Nominal Capacity:3000mAh;Battery Type:cylindrical;
$17.58
7 days ago
pxm***
Nominal Voltage:3.7v;Nominal Capacity:3000mAh;Battery Type:cylindrical;
$105.48
15 days ago
qmr***
Nominal Voltage:3.7v;Nominal Capacity:3000mAh;Battery Type:cylindrical;
$93.76
47 days ago
hsd***
Nominal Voltage:3.7v;Nominal Capacity:3000mAh;Battery Type:cylindrical;
$105.48
20 days ago
jyr***
Nominal Voltage:3.7v;Nominal Capacity:3000mAh;Battery Type:cylindrical;
$35.16
15 days ago
jyu***
Nominal Voltage:3.7v;Nominal Capacity:3000mAh;Battery Type:cylindrical;
$82.04
29 days ago
igp***
Nominal Voltage:3.7v;Nominal Capacity:3000mAh;Battery Type:cylindrical;
$93.76
4 days ago
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1***m
Helpful (3)
i really enjoy OKWISHING! its easy, affordable, and it has very cute clothes! i will say it’s important to really look at what you’re buying. i stay away from items without reviews. also, be sure to measure yourself and compare your measurements to the item’s size chart. do not just say well im normally a medium ill go w that. not a good plan. oyherwise, a great app. ive bought many things including jeans, tops, bathing suits, earrings. i love all of it.
Feb.22.2025
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Feb.22.2025
1***m
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Great clothes, inexpensive and great return policy.
Jan.09.2025
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Jan.09.2025
1***m
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Value and convenience. Find just about anything you need here. I love OKWISHING
Mar.13.2025
Helpful (1)
Mar.13.2025
- 1
18650 21700 Deep Dycle 3500 mAh Rechargeable Battery Lithium 3.7V 3500mAh 18650 For Laptop Toys 18650 Battery Pack
$3.6$5.86-38.57%
Nominal Voltage:
3.7v
Nominal Capacity:
3000mAh
Battery Type:
cylindrical
Quantity:
Add to Cart
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