- Place of Origin: Guangdong, China (Mainland)
- Brand Name: esg
- Model Number: 12V250AH
- Usage: electric equipment
- Voltage: 12v
- Sealed Type: Sealed
- Maintenance Type: Free
- Size: 520*268*227
- Weight: 69KG
- Nominal Capacity: 250AH
- Long life: Low self-discharge
- Safe: Maintenance free
Packaging & Delivery
|Packaging Details:||carton wood packing and pallets|
|Delivery Detail:||15-20 Days|
Specifications12v 250AH lead crystal battery
1 life 10-15years
2.payment term DA. DP. LC.
3. Pass CE UL ISO certificate
4.FOB 1~18 USD
1.Price cheapest --- complete production line
2.27years history---Before was Sino-Japanese joint venture government
3.Quality 100% pass testing
4.Payment term. LC .DA .DP .OA etc.
5.Free sample for you testing.
1. Absorbent glass mat (AGM).
2. It’s designed to operate for up to 10 year
3. If depth of discharge is 30%, cycle service lifecan reach maximum at about 1000 times.
4. Its warranty is 3 yearsfor proper use in telecommunication.
Battery case is making of fire proofs material therefore the case is very strong. It can avoid the fire.
Its using insert terminal.
7. Maintenance free
8. High power -to-weightratio
9. No Memory Effect. -
10. Low self discharge
11. Longer service life–
12. High discharge rate
13.Wide operation temperature range–
14Easy of shipment
1. Positive electrode plates
Positve plates are made of lead –calcium alloy with special chemical fromula
2. Negative Electode plates
Negative plates are made of lead – ehemical fromula
The glass – fibre separator in HENDA SLA battery are made with advanced technology –this high porosity of the separators retains adequate electrolyte for reaction with active matterial of the plates .
The valve system which operaters from 1 psi to 6psi (0.07-0.43kg/cm3) is designed to relaease excess gas and keep the internal pressure within the optmum range of safety .it protects the negative plates from contamination from oxygen in the air valve are 100%visually inspected during battery production
If the internal pressure is increased to an abnormal level during overcharge ,the safety valve ill be opened to release gas . it thus eliminates the danger of repture .once it has opened m it automatically closed in preparetion for future excessive increase in pressure.
Depending on the battery model in MICRO series ,the terminals may b e fasten rype , bolt –and nut type , pressue contact type ,cable –and connector type or other special types
Terminals of MEDIUM series and MACRO series are threaded –insertion type of bolt –and nuts types
Construction of threaded-insert strud
For 6v ,8v and 12v batteries ,standard container are manufactured from ABS plastic resin (UL94HB),It is optinal to use flame retardant ABS plastic resin (ul94vo)
Each 6v battery has 3cells .8v battery have 4cells and 12vbattery has 6cells
The ABS platic cover and container are sealed by a special expoxy that is acid resistant .
4.Our work shop
5.Our testing reporter