Lithium Ion Battery: Difference between revisions
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=Depth of Discharge= | =Depth of Discharge= | ||
Discharging only a little bit and recharging prolongs life - 10 years if 10% discharge, 6 years if 25% discharge | Discharging only a little bit and recharging prolongs life - 10 years if 10% discharge, 6 years if 25% discharge | ||
=Cost= | =Cost= | ||
*$56 for 100 of 20Wh batteries - 3.7V, 5.8Ahr. 2000Whr for $56? [https://www.ebay.com/p/100pcs-18650-Battery-5800mah-Li-ion-3-7v-Rechargeable-Battery-VP/927436416?iid=262775832391&_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D2%26asc%3D44040%26meid%3Dcc2be7cc7fd34fc3810f2866dfc3c298%26pid%3D100005%26rk%3D3%26rkt%3D12%26sd%3D152553403321%26itm%3D262775832391&_trksid=p2047675.c100005.m1851] | *$56 for 100 of 20Wh batteries - 3.7V, 5.8Ahr. 2000Whr for $56? [https://www.ebay.com/p/100pcs-18650-Battery-5800mah-Li-ion-3-7v-Rechargeable-Battery-VP/927436416?iid=262775832391&_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D2%26asc%3D44040%26meid%3Dcc2be7cc7fd34fc3810f2866dfc3c298%26pid%3D100005%26rk%3D3%26rkt%3D12%26sd%3D152553403321%26itm%3D262775832391&_trksid=p2047675.c100005.m1851] | ||
*$3.50 per cell - PKcell - [https://www.ebay.com/itm/50-High-Drain-5C-18650-Vape-Mod-Battery-2200mAh-For-Electric-Vehicles-batt-Pack/142478407328?hash=item212c5ff6a0:g:B7oAAOSwuNBZlQTy] | *$3.50 per cell - PKcell - [https://www.ebay.com/itm/50-High-Drain-5C-18650-Vape-Mod-Battery-2200mAh-For-Electric-Vehicles-batt-Pack/142478407328?hash=item212c5ff6a0:g:B7oAAOSwuNBZlQTy] | ||
=Review= | =Review= | ||
Revision as of 06:07, 13 May 2018
Depth of Discharge
Discharging only a little bit and recharging prolongs life - 10 years if 10% discharge, 6 years if 25% discharge
Cost
Review
This is a good review. Standard is 2200 Ah for 16850 cells, 3.7 v - 8 Wh of power. [3]
- Ultrafire at 1 Ah and 4A is worth the $1.2. Cheaper than all others, for half capacity.
- Further - if it's 1 Ah and 72 cents - it appears to be 370W for $67, or under $200 per kW? Definitely would be worth it.
Protection
- Protected vs unprotected - [4]
Not High Drain
- 2600 advertised - [5]