8pcs 18650 Battery Holder 1/2/3/4 Slots 18650 Battery Holder with Wire for DIY Parallel or Series Circuit PCB Projects. Easy to Use: 18650 Battery Holder is Fixed with Stainless Steel Spring. Which Very Convenient to Install and Replace,and Battery Holder Can be Used as a Parallel or Series Battery Sled, Depending On How You Set it Up / Wiring It.
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