7.3a Protection Board For 4 Packs 14.4v 16.8v 18650 Li-ion Li Battery Seiko Ic

US $6.55

guangdong, China
Jan 29th

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7.3A Protection Board for 4 Packs 14.4V 16.8V 18650 Li-ion Li Battery Seiko IC Description Features: The protection plate use Japanese seiko lithium polymer rechargeable battery protection IC/AO MOS tube built-in high precision voltage detection circuit; connected to the charger terminals using high pressure device; built-in three over current detection circuit through the MOS tube can control the battery charging and discharging low current consumption. Apllication 4 packs of 18650 lithium nickel manganese cobalt, cobalt acid lithium, manganese acid lithium ion rechargeable battery pack; 4 packs of lithium polymer rechargeable batteries Parameter No Test project standard 1 voltage Charging voltage DC:18V CC/CV max 20V Single cell balancing voltage 2 current Single cell balancing current Single cell consumption curren ≤10uA Max continuous discharge current 7.3A 3 Over charging protection Over Charging test voltage 4.325V ± 0.025 V Over charging detection delay time 0.5-1.5S Over Charging recovery voltage 4.075V± 0.025 V 4 Over discharge protection Over discharge test voltage 2.7V± 0.05V over discharge detection delay time 100ms Over discharge recovery voltage 3.0V± 0.1 V 5 Over current protection Over-current detecting voltage 200mv±25mV Over-current detection current 16A±1A Over-current detection delay time 10ms Restore state Automatic recovery 6 Short circuit protection Test status External short circuit Detection of delay time ≤600uS Restore state Automatic recovery 7 Internal resistance Protection circuit (MOSPET) ≤9.7mΩ 8 temperature Working temperature range -40~+52°C Storage temperature range -40~+125°C 9 PCB size (L * W * H) 50*16*2.6MM The wiring diagram B+: Battery V+ Positive B3-: 1st Battery V– Negative & 2nd Battery V+ Positive B2-: 2nd Battery V- Negative & 3rd Battery V+ Positive B1-: 3rd Battery V- Negative & 4th Battery V+ Positive B-: 4th Battery V- Negative P+: Output / Charging V+ P-: Output / Charging V- Note Please note that the input and output voltage , and load current conditions, so power protection board does not exceed the allowable power consumption specifications . Situation may occur when connecting the battery can not be discharged . In this case , connect the charger can be restored to normal working condition. Case overcharge and over-discharge batteries battery becomes mixed with overcharge and over- discharge state status , will not be charged and discharged The protection board , although the built-in ESD protection circuitry, but please do not apply an electrostatic discharge protection circuit performance over the protection board Payment 1. We only accept paypal payments. 2. All major credit cards are accepted though secure payment processor ESCROW. Delivery details All the items will be dispatched within 2 business day after the payment is clear. Items will arrive in 7-35 business days. Customs duty is obligation and liability of a citizen in your country, so buyer should be responsible for any tax and custom duty incurred. For example, Laser Pointer is unacceptable in some countries. Therefore, please double check your local customs policy carefully before purchase. Or, we will NOT be responsible for any failure delivery related destination customs issue. Due to the strict customs in Brazil, the delivery time will be more longer, maybe more than 60 days. Hope you will wait patiently, but don't hesitate to contact us if have any concerns. We send to America and Russia via ePacket, 10-25 days can delivery. For other countries, we will send via China post or other fast mode of transportation. Here shows the delivery time of some countries, refer only. The arrival time depends on some factors and different areas. Country EMS DHL UPS Expedited FEDEX TNT China Post Air Mail Russian Federation 8~26 - - 7~23 10~43 20~54 Brazil 23~50 6~25 9~23 4~16 7~23 22~54 United States 7~21 3~9 4~17 3~9 5~27 13~34 Spain 8~27 4~19 3~23 5~16 6~30 13~37 Belarus 11~35 - - - - 30~56 Ukraine 9~29 4~23 - - 8~36 18~40 France 6~27 3~12 5~23 5~18 5~27 11~32 Israel 3~28 5~23 8~23 4~16 6~28 19~44 Canada 8~27 3~12 4~22 3~13 5~24 16~37 United Kingdom 7~27 3~11 5~22 5~16 4~26 10~31 Australia 6~19 4~20 4~21 4~22 4~20 14~50 Argentina 19~50 - 11~22 7~23 - 27~60 Sweden 8~27 4~20 4~21 5~17 7~29 13~35 Turkey 3~26 - 3~11 - 3~23 8~34 Italy 9~28 4~13 6~23 5~14 5~38 23~55 Czech Republic - 4~20 4~21 4~16 6~34 15~36 Netherlands - 4~17 4~23 4~14 4~23 11~37 Kazakhstan 8~28 8~23 - - - 22~55 Poland - 4~19 5~23 6~23 7~43 13~43 Belgium 12~36 4~19 4~23 4~18 5~43 13~35 Estonia - - - - 6~35 17~51 Latvia - - - - 4~26 20~50 New Zealand 6~27 5~19 4~23 - 5~25 12~31 Switzerland 7~22 4~18 5~23 5~20 4~23 12~32 Lithuania - - - - 5~38 20~48 Slovakia (Slovak Republic) - 4~23 - - 4~30 14~38 Germany 8~31 4~18 5~23 5~20 6~33 15~50 Chile - 6~23 8~23 2~17 1~18 32~60 Norway 8~23 4~19 7~23 5~23 7~24 14~36 Bulgaria - - - - - 15~52 Contact us If you have any questions, please feel free to email our service specialists 24 Hours a Day, 7 Days a Week. We will reply you ASAP. If no response within 24 Hours, please check the spam in your mail box. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help. Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem. Please DON’T leave negative or neutral feedback if you haven’t received item in 30 days, because we have mentioned the shipping time repeatedly. Engineered for professional eBay sellers!

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	WH
Model	WH-4S8A