Consumer Electronics
15157
300
627
561
537
2390
157
228
13
92
164
38
109
271
839
14
691
66
26
3505
2234
49
449
852
298
305
26
27
289
Price Range
14 below $21.50
10 $21.50 ~ $34.90
2 $34.90 ~ $48.30
1 $48.30 +
Listed
3 within a year
Product Type
26 Batteries
Battery Chemistry
3 INR - LiNiCoMnO2
18 Li-Ion
3 Lithium
Battery Feature
26 Rechargeable
Battery Form Factor
26 21700
Brand
2 Eleaf
1 Fenix
1 IMALENT
8 LiitoKala
5 Nitecore
show more...
FastTech › Consumer Electronics › Batteries
Batteries
selected filters: Battery Form Factor: 21700
INR 21700-30T 3.6V 3000mAh Rechargeable Li-ion Battery
$11.71
FREE SHIPPING ELIGIBLE
authentic Samsung cell / flat / 35A continuous
 
(4)
LiitoKala Lii-40A IMR 21700 3.7V 4000mAh Li-ion Battery (4-Pack)
$31.24 4-pack
FREE SHIPPING ELIGIBLE
authentic / 40A continuous discharge
INR21700-50E 3.7V 5000mAh Rechargeable Battery (2-Pack)
$21.50 2-pack
FREE SHIPPING ELIGIBLE
authentic Samsung cell / flat / 10A continuous / 25A peak
INR 21700-30T 3.6V 3000mAh Rechargeable Li-ion Battery (2-Pack)
$21.32 2-pack
FREE SHIPPING ELIGIBLE
authentic Samsung cell / flat / 35A continuous
 
(4)
IMALENT 21700 3.7V 4000mAh Rechargeable Li-ion Battery
$18.84
FREE SHIPPING ELIGIBLE
authentic
LiitoKala Lii-40A 21700 3.7V 4000mAh Rechargeable Battery (2-Pack)
$16.54 2-pack
FREE SHIPPING ELIGIBLE
Ships Next Day
authentic / w/ nickel sheet
Fenix ARB-L21-5000U 21700 5000mAh USB-C Rechargeable Li-ion Battery
$27.24
FREE SHIPPING ELIGIBLE
authentic
Wurkkos 21700 3.6V 5000mAh Rechargeable Li-ion Battery
$11.82
FREE SHIPPING ELIGIBLE
authentic
Sofirn 21700 3.7V 4000mAh Rechargeable Li-ion Battery
$9.42
FREE SHIPPING ELIGIBLE
authentic
INR 21700-30T 3.6V 3000mAh Rechargeable Li-ion Battery (4-Pack)
$38.67 4-pack
FREE SHIPPING ELIGIBLE
authentic Samsung cell / flat / 35A continuous
 
(3)
Eleaf AVB 21700 3.7V 4000mAh Rechargeable Li-ion Battery
$12.19
FREE SHIPPING ELIGIBLE
Ships Next Day
authentic / 30A max. discharge current
 
(3)
Eleaf AVB 21700 3.7V 4000mAh Rechargeable Li-ion Battery (2-Pack)
$24.45 2-pack
FREE SHIPPING ELIGIBLE
authentic / 30A max. discharge current
 
(5)
LiitoKala 21700 3.7V 4000mAh Rechargeable Li-ion Battery
$9.38
FREE SHIPPING ELIGIBLE
authentic / 40A output current
 
(3)
INR 21700-50E 3.7V 5000mAh Rechargeable Battery (4-Pack)
$39.11 4-pack
FREE SHIPPING ELIGIBLE
authentic Samsung cell / flat / 10A continuous / 25A peak
INR 21700-50E 3.7V 5000mAh Rechargeable Battery (8-Pack)
$70.56 8-pack
FREE SHIPPING ELIGIBLE
authentic Samsung cell / flat / 10A continuous / 25A peak
Nitecore NL2150 21700 3.6V 5000mAh Rechargeable Li-ion Battery
$24.32
FREE SHIPPING ELIGIBLE
authentic / 5A max. continuous discharge / multi-layer protection
Authentic LiitoKala Lii-50E 21700 3.7V 5000mAh Li-ion Battery
$9.33
FREE SHIPPING ELIGIBLE
LiitoKala Lii-50E 21700 3.7V 5000mAh Li-ion Battery (2-Pack)
$18.04 2-pack
FREE SHIPPING ELIGIBLE
authentic
 
(2)
LiitoKala Lii-50E 21700 3.7V 5000mAh Li-ion Battery (4-Pack)
$33.49 4-pack
FREE SHIPPING ELIGIBLE
authentic
 
(1)
Nitecore NL2150HPR 21700 3.6V 5000mAh Rechargeable Li-ion Battery
$30.60
FREE SHIPPING ELIGIBLE
authentic / 15A max continuous discharge current / USB-C charging port / charging indicators / multi-layer protection
Nitecore NL2150R 21700 3.6V 5000mAh Rechargeable Li-ion Battery
$25.65
FREE SHIPPING ELIGIBLE
authentic / 5A max continuous discharge current / USB-C charging port / charging indicators / multi-layer protection
Nitecore NL2140R 21700 3.6V 4000mAh Rechargeable Li-ion Battery
$21.64
FREE SHIPPING ELIGIBLE
authentic / 5A max continuous discharge current / USB-C charging port / charging indicators / multi-layer protection
Nitecore NL2150HPi 21700 3.6V 5000mAh Rechargeable Li-ion Battery
$28.98
FREE SHIPPING ELIGIBLE
authentic / 15A max continuous discharge current / multi-layer protection
LiitoKala Lii-40A 21700 3.7V 4000mAh Rechargeable Battery
$8.61
FREE SHIPPING ELIGIBLE
authentic / w/ nickel sheet
LiitoKala Lii-40A IMR 21700 3.7V 4000mAh Li-ion Battery (2-Pack)
$16.76 2-pack
FREE SHIPPING ELIGIBLE
authentic / 40A continuous discharge
 
(2)
INR 21700-50E 3.7V 5000mAh Rechargeable Battery
$11.21
FREE SHIPPING ELIGIBLE
Ships Next Day
authentic Samsung cell / flat / 10A continuous / 25A peak