Search
Search titles only
By:
Search titles only
By:
Log in
Register
Search
Search titles only
By:
Search titles only
By:
Menu
Install the app
Install
Forums
New posts
All threads
Latest threads
New posts
Trending threads
Trending
Search forums
What's new
New posts
New ads
New profile posts
Latest activity
Free Ads
Latest reviews
Search ads
Members
Current visitors
New profile posts
Search profile posts
Contact us
Latest ads
iphone x used
AssassiN1
Updated:
Yesterday at 10:30 PM
කිතුල් තලප
Manoj Suranga Bandara
Updated:
Saturday at 7:04 PM
Ad icon
ව්යාපාර, Tuition පන්ති සහ Personal Portfolios සඳහා Web Setup එකක් රු. 9,099/- කට (වාර්ෂික renewal ර
thathsilura
Updated:
Thursday at 6:17 PM
AWS Certified Solutions Architect-Associate + AWS Certified Cloud Practitioner
Sanjeewani95
Updated:
Aug 19, 2026
🚀 එක පැකේජ් එකයි - මාසෙටම Unlimited Internet! 🌐
sayuru bandara
Updated:
Aug 18, 2026
Electronics
Vehicles
Property
Search
Reply to thread
Forums
General
ElaKiri Talk!
UPS for 9 hours
Get the App
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="migaraDe" data-source="post: 27299263" data-attributes="member: 310238"><p>Good calculation. Most people think UPS is a backup power system. The role of UPS is to provide uninterrupted power during failover to backup power and wise versa.</p><p></p><p>Another aspect to consider is charging time, if planning to use daily.</p><p>Recommended current for charging lead acid batteries is 2A (for longer battery life).</p><p></p><p>In that case, to charge a 100Ah batter, it will take = 50 hours.</p><p>If charged with 4A, time for charging = 25 hours.</p><p></p><p>If planning to use for 9-10 hours. you'll need 2 x 100Ah batteries ( charging with 4A)</p><p></p><p>Over discharge protector is essential if inverter does not have the feature or planning to use with DC-DC step up/down.</p></blockquote><p></p>
[QUOTE="migaraDe, post: 27299263, member: 310238"] Good calculation. Most people think UPS is a backup power system. The role of UPS is to provide uninterrupted power during failover to backup power and wise versa. Another aspect to consider is charging time, if planning to use daily. Recommended current for charging lead acid batteries is 2A (for longer battery life). In that case, to charge a 100Ah batter, it will take = 50 hours. If charged with 4A, time for charging = 25 hours. If planning to use for 9-10 hours. you'll need 2 x 100Ah batteries ( charging with 4A) Over discharge protector is essential if inverter does not have the feature or planning to use with DC-DC step up/down. [/QUOTE]
Insert quotes…
Verification
Payakata winadi keeyak tibeda?
Post reply
Top
Bottom